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Finding the Fourth Proportional to 221,737.71, 332,615.13 and 77,615.62

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Solution

The fourth proportional to 221,737.71, 332,615.13 and 77,615.62 is: 116,426.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,737.71 : 332,615.13 = 77,615.62 : x
  2. Step 2: Convert to fraction form
    221,737.71/332,615.13 = 77,615.62/x
  3. Step 3: Cross multiply
    221,737.71x = 332,615.13 × 77,615.62
  4. Step 4: Simplify right side
    221,737.71x = 25,816,129,536.33
  5. Step 5: Solve for x
    x = 25,816,129,536.33/221,737.71
  6. Step 6: Final answer
    x = 116,426.43

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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.