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Finding the Fourth Proportional to 71,932.52, 99,309.45 and 63,952.67

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Solution

The fourth proportional to 71,932.52, 99,309.45 and 63,952.67 is: 88,292.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,932.52 : 99,309.45 = 63,952.67 : x
  2. Step 2: Convert to fraction form
    71,932.52/99,309.45 = 63,952.67/x
  3. Step 3: Cross multiply
    71,932.52x = 99,309.45 × 63,952.67
  4. Step 4: Simplify right side
    71,932.52x = 6,351,103,987.18
  5. Step 5: Solve for x
    x = 6,351,103,987.18/71,932.52
  6. Step 6: Final answer
    x = 88,292.53

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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.