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Finding the Fourth Proportional to 79,644.90, 119,488.14 and 29,725.41

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Solution

The fourth proportional to 79,644.90, 119,488.14 and 29,725.41 is: 44,595.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,644.90 : 119,488.14 = 29,725.41 : x
  2. Step 2: Convert to fraction form
    79,644.90/119,488.14 = 29,725.41/x
  3. Step 3: Cross multiply
    79,644.90x = 119,488.14 × 29,725.41
  4. Step 4: Simplify right side
    79,644.90x = 3,551,833,951.64
  5. Step 5: Solve for x
    x = 3,551,833,951.64/79,644.90
  6. Step 6: Final answer
    x = 44,595.87

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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.