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Finding the Fourth Proportional to 118,066, 162,925.16 and 64,350.80

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Solution

The fourth proportional to 118,066, 162,925.16 and 64,350.80 is: 88,800.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,066 : 162,925.16 = 64,350.80 : x
  2. Step 2: Convert to fraction form
    118,066/162,925.16 = 64,350.80/x
  3. Step 3: Cross multiply
    118,066x = 162,925.16 × 64,350.80
  4. Step 4: Simplify right side
    118,066x = 10,484,364,386.13
  5. Step 5: Solve for x
    x = 10,484,364,386.13/118,066
  6. Step 6: Final answer
    x = 88,800.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.