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Finding the Fourth Proportional to 221,736.71, 332,613.63 and 77,614.62

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Solution

The fourth proportional to 221,736.71, 332,613.63 and 77,614.62 is: 116,424.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,736.71 : 332,613.63 = 77,614.62 : x
  2. Step 2: Convert to fraction form
    221,736.71/332,613.63 = 77,614.62/x
  3. Step 3: Cross multiply
    221,736.71x = 332,613.63 × 77,614.62
  4. Step 4: Simplify right side
    221,736.71x = 25,815,680,499.27
  5. Step 5: Solve for x
    x = 25,815,680,499.27/221,736.71
  6. Step 6: Final answer
    x = 116,424.93

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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.