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Finding the Fourth Proportional to 69,901.91, 104,853.19 and 29,915.04

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Solution

The fourth proportional to 69,901.91, 104,853.19 and 29,915.04 is: 44,872.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,901.91 : 104,853.19 = 29,915.04 : x
  2. Step 2: Convert to fraction form
    69,901.91/104,853.19 = 29,915.04/x
  3. Step 3: Cross multiply
    69,901.91x = 104,853.19 × 29,915.04
  4. Step 4: Simplify right side
    69,901.91x = 3,136,687,803.57
  5. Step 5: Solve for x
    x = 3,136,687,803.57/69,901.91
  6. Step 6: Final answer
    x = 44,872.71

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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.