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Finding the Fourth Proportional to 79,658.60, 119,531.10 and 32,916.20

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Solution

The fourth proportional to 79,658.60, 119,531.10 and 32,916.20 is: 49,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,658.60 : 119,531.10 = 32,916.20 : x
  2. Step 2: Convert to fraction form
    79,658.60/119,531.10 = 32,916.20/x
  3. Step 3: Cross multiply
    79,658.60x = 119,531.10 × 32,916.20
  4. Step 4: Simplify right side
    79,658.60x = 3,934,509,593.82
  5. Step 5: Solve for x
    x = 3,934,509,593.82/79,658.60
  6. Step 6: Final answer
    x = 49,392.15

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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.