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Finding the Fourth Proportional to 79,641.43, 119,482.97 and 29,721.97

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Solution

The fourth proportional to 79,641.43, 119,482.97 and 29,721.97 is: 44,590.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,641.43 : 119,482.97 = 29,721.97 : x
  2. Step 2: Convert to fraction form
    79,641.43/119,482.97 = 29,721.97/x
  3. Step 3: Cross multiply
    79,641.43x = 119,482.97 × 29,721.97
  4. Step 4: Simplify right side
    79,641.43x = 3,551,269,250.59
  5. Step 5: Solve for x
    x = 3,551,269,250.59/79,641.43
  6. Step 6: Final answer
    x = 44,590.73

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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.