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Finding the Fourth Proportional to 97,798,710.80, 146,698,066.20 and 52,449,078.80

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Solution

The fourth proportional to 97,798,710.80, 146,698,066.20 and 52,449,078.80 is: 78,673,618.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,798,710.80 : 146,698,066.20 = 52,449,078.80 : x
  2. Step 2: Convert to fraction form
    97,798,710.80/146,698,066.20 = 52,449,078.80/x
  3. Step 3: Cross multiply
    97,798,710.80x = 146,698,066.20 × 52,449,078.80
  4. Step 4: Simplify right side
    97,798,710.80x = 7,694,178,433,931,415
  5. Step 5: Solve for x
    x = 7,694,178,433,931,415/97,798,710.80
  6. Step 6: Final answer
    x = 78,673,618.20

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.