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Finding the Fourth Proportional to 71,932.51, 99,309.45 and 63,952.66

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Solution

The fourth proportional to 71,932.51, 99,309.45 and 63,952.66 is: 88,292.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,932.51 : 99,309.45 = 63,952.66 : x
  2. Step 2: Convert to fraction form
    71,932.51/99,309.45 = 63,952.66/x
  3. Step 3: Cross multiply
    71,932.51x = 99,309.45 × 63,952.66
  4. Step 4: Simplify right side
    71,932.51x = 6,351,103,490.64
  5. Step 5: Solve for x
    x = 6,351,103,490.64/71,932.51
  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.