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Finding the Fourth Proportional to 83,797.40, 125,737.06 and 39,428.56

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Solution

The fourth proportional to 83,797.40, 125,737.06 and 39,428.56 is: 59,162.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,797.40 : 125,737.06 = 39,428.56 : x
  2. Step 2: Convert to fraction form
    83,797.40/125,737.06 = 39,428.56/x
  3. Step 3: Cross multiply
    83,797.40x = 125,737.06 × 39,428.56
  4. Step 4: Simplify right side
    83,797.40x = 4,957,631,214.43
  5. Step 5: Solve for x
    x = 4,957,631,214.43/83,797.40
  6. Step 6: Final answer
    x = 59,162.11

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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.