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Finding the Fourth Proportional to 106,593.71, 159,974.10 and 74,363.18

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Solution

The fourth proportional to 106,593.71, 159,974.10 and 74,363.18 is: 111,603.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,593.71 : 159,974.10 = 74,363.18 : x
  2. Step 2: Convert to fraction form
    106,593.71/159,974.10 = 74,363.18/x
  3. Step 3: Cross multiply
    106,593.71x = 159,974.10 × 74,363.18
  4. Step 4: Simplify right side
    106,593.71x = 11,896,182,893.62
  5. Step 5: Solve for x
    x = 11,896,182,893.62/106,593.71
  6. Step 6: Final answer
    x = 111,603.05

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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.