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Finding the Fourth Proportional to 71,398.98, 107,123.45 and 44,714.52

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Solution

The fourth proportional to 71,398.98, 107,123.45 and 44,714.52 is: 67,087.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,398.98 : 107,123.45 = 44,714.52 : x
  2. Step 2: Convert to fraction form
    71,398.98/107,123.45 = 44,714.52/x
  3. Step 3: Cross multiply
    71,398.98x = 107,123.45 × 44,714.52
  4. Step 4: Simplify right side
    71,398.98x = 4,789,973,423.92
  5. Step 5: Solve for x
    x = 4,789,973,423.92/71,398.98
  6. Step 6: Final answer
    x = 67,087.42

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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.