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Finding the Fourth Proportional to 72,358.65, 108,498.96 and 22,417.29

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Solution

The fourth proportional to 72,358.65, 108,498.96 and 22,417.29 is: 33,613.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,358.65 : 108,498.96 = 22,417.29 : x
  2. Step 2: Convert to fraction form
    72,358.65/108,498.96 = 22,417.29/x
  3. Step 3: Cross multiply
    72,358.65x = 108,498.96 × 22,417.29
  4. Step 4: Simplify right side
    72,358.65x = 2,432,252,651.02
  5. Step 5: Solve for x
    x = 2,432,252,651.02/72,358.65
  6. Step 6: Final answer
    x = 33,613.85

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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.