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Finding the Fourth Proportional to 79,722.17, 119,541.70 and 29,761.17

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Solution

The fourth proportional to 79,722.17, 119,541.70 and 29,761.17 is: 44,626.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,722.17 : 119,541.70 = 29,761.17 : x
  2. Step 2: Convert to fraction form
    79,722.17/119,541.70 = 29,761.17/x
  3. Step 3: Cross multiply
    79,722.17x = 119,541.70 × 29,761.17
  4. Step 4: Simplify right side
    79,722.17x = 3,557,700,855.79
  5. Step 5: Solve for x
    x = 3,557,700,855.79/79,722.17
  6. Step 6: Final answer
    x = 44,626.24

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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.