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Finding the Fourth Proportional to 71,279.52, 106,950.24 and 44,686.40

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Solution

The fourth proportional to 71,279.52, 106,950.24 and 44,686.40 is: 67,049.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,279.52 : 106,950.24 = 44,686.40 : x
  2. Step 2: Convert to fraction form
    71,279.52/106,950.24 = 44,686.40/x
  3. Step 3: Cross multiply
    71,279.52x = 106,950.24 × 44,686.40
  4. Step 4: Simplify right side
    71,279.52x = 4,779,221,204.74
  5. Step 5: Solve for x
    x = 4,779,221,204.74/71,279.52
  6. Step 6: Final answer
    x = 67,049.01

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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.