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Finding the Fourth Proportional to 152,617.20, 228,925.80 and 130,066.80

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Solution

The fourth proportional to 152,617.20, 228,925.80 and 130,066.80 is: 195,100.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,617.20 : 228,925.80 = 130,066.80 : x
  2. Step 2: Convert to fraction form
    152,617.20/228,925.80 = 130,066.80/x
  3. Step 3: Cross multiply
    152,617.20x = 228,925.80 × 130,066.80
  4. Step 4: Simplify right side
    152,617.20x = 29,775,646,243.44
  5. Step 5: Solve for x
    x = 29,775,646,243.44/152,617.20
  6. Step 6: Final answer
    x = 195,100.20

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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.