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Finding the Fourth Proportional to 138,151.16, 207,114.48 and 62,193.92

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Solution

The fourth proportional to 138,151.16, 207,114.48 and 62,193.92 is: 93,240.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,151.16 : 207,114.48 = 62,193.92 : x
  2. Step 2: Convert to fraction form
    138,151.16/207,114.48 = 62,193.92/x
  3. Step 3: Cross multiply
    138,151.16x = 207,114.48 × 62,193.92
  4. Step 4: Simplify right side
    138,151.16x = 12,881,260,364.39
  5. Step 5: Solve for x
    x = 12,881,260,364.39/138,151.16
  6. Step 6: Final answer
    x = 93,240.34

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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.