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Finding the Fourth Proportional to 96,687.16, 145,037.70 and 40,470.70

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Solution

The fourth proportional to 96,687.16, 145,037.70 and 40,470.70 is: 60,708.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,687.16 : 145,037.70 = 40,470.70 : x
  2. Step 2: Convert to fraction form
    96,687.16/145,037.70 = 40,470.70/x
  3. Step 3: Cross multiply
    96,687.16x = 145,037.70 × 40,470.70
  4. Step 4: Simplify right side
    96,687.16x = 5,869,777,245.39
  5. Step 5: Solve for x
    x = 5,869,777,245.39/96,687.16
  6. Step 6: Final answer
    x = 60,708.96

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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.