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Finding the Fourth Proportional to 71,624.64, 98,849.04 and 41,400.36

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Solution

The fourth proportional to 71,624.64, 98,849.04 and 41,400.36 is: 57,136.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,624.64 : 98,849.04 = 41,400.36 : x
  2. Step 2: Convert to fraction form
    71,624.64/98,849.04 = 41,400.36/x
  3. Step 3: Cross multiply
    71,624.64x = 98,849.04 × 41,400.36
  4. Step 4: Simplify right side
    71,624.64x = 4,092,385,841.65
  5. Step 5: Solve for x
    x = 4,092,385,841.65/71,624.64
  6. Step 6: Final answer
    x = 57,136.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.