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Finding the Fourth Proportional to 69,043.46, 103,571.12 and 29,591.20

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Solution

The fourth proportional to 69,043.46, 103,571.12 and 29,591.20 is: 44,389.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,043.46 : 103,571.12 = 29,591.20 : x
  2. Step 2: Convert to fraction form
    69,043.46/103,571.12 = 29,591.20/x
  3. Step 3: Cross multiply
    69,043.46x = 103,571.12 × 29,591.20
  4. Step 4: Simplify right side
    69,043.46x = 3,064,793,726.14
  5. Step 5: Solve for x
    x = 3,064,793,726.14/69,043.46
  6. Step 6: Final answer
    x = 44,389.34

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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.