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Finding the Fourth Proportional to 62,359.67, 86,007.72 and 55,197.25

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Solution

The fourth proportional to 62,359.67, 86,007.72 and 55,197.25 is: 76,129.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,359.67 : 86,007.72 = 55,197.25 : x
  2. Step 2: Convert to fraction form
    62,359.67/86,007.72 = 55,197.25/x
  3. Step 3: Cross multiply
    62,359.67x = 86,007.72 × 55,197.25
  4. Step 4: Simplify right side
    62,359.67x = 4,747,389,614.74
  5. Step 5: Solve for x
    x = 4,747,389,614.74/62,359.67
  6. Step 6: Final answer
    x = 76,129.16

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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.