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Finding the Fourth Proportional to 79,397.84, 119,109.72 and 29,478.08

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Solution

The fourth proportional to 79,397.84, 119,109.72 and 29,478.08 is: 44,221.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,397.84 : 119,109.72 = 29,478.08 : x
  2. Step 2: Convert to fraction form
    79,397.84/119,109.72 = 29,478.08/x
  3. Step 3: Cross multiply
    79,397.84x = 119,109.72 × 29,478.08
  4. Step 4: Simplify right side
    79,397.84x = 3,511,125,854.94
  5. Step 5: Solve for x
    x = 3,511,125,854.94/79,397.84
  6. Step 6: Final answer
    x = 44,221.93

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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.