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Finding the Fourth Proportional to 79,578.86, 119,414.45 and 29,693.39

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Solution

The fourth proportional to 79,578.86, 119,414.45 and 29,693.39 is: 44,557.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,578.86 : 119,414.45 = 29,693.39 : x
  2. Step 2: Convert to fraction form
    79,578.86/119,414.45 = 29,693.39/x
  3. Step 3: Cross multiply
    79,578.86x = 119,414.45 × 29,693.39
  4. Step 4: Simplify right side
    79,578.86x = 3,545,819,312.65
  5. Step 5: Solve for x
    x = 3,545,819,312.65/79,578.86
  6. Step 6: Final answer
    x = 44,557.30

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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.