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Finding the Fourth Proportional to 138,566.28, 207,715.77 and 63,737.67

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Solution

The fourth proportional to 138,566.28, 207,715.77 and 63,737.67 is: 95,545.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,566.28 : 207,715.77 = 63,737.67 : x
  2. Step 2: Convert to fraction form
    138,566.28/207,715.77 = 63,737.67/x
  3. Step 3: Cross multiply
    138,566.28x = 207,715.77 × 63,737.67
  4. Step 4: Simplify right side
    138,566.28x = 13,239,319,202.06
  5. Step 5: Solve for x
    x = 13,239,319,202.06/138,566.28
  6. Step 6: Final answer
    x = 95,545.03

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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.