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Finding the Fourth Proportional to 217,672.78, 326,510.79 and 59,909.92

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Solution

The fourth proportional to 217,672.78, 326,510.79 and 59,909.92 is: 89,865.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,672.78 : 326,510.79 = 59,909.92 : x
  2. Step 2: Convert to fraction form
    217,672.78/326,510.79 = 59,909.92/x
  3. Step 3: Cross multiply
    217,672.78x = 326,510.79 × 59,909.92
  4. Step 4: Simplify right side
    217,672.78x = 19,561,235,308.04
  5. Step 5: Solve for x
    x = 19,561,235,308.04/217,672.78
  6. Step 6: Final answer
    x = 89,865.33

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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.