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Finding the Fourth Proportional to 69,024.40, 103,645.95 and 50,434.90

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Solution

The fourth proportional to 69,024.40, 103,645.95 and 50,434.90 is: 75,732.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,024.40 : 103,645.95 = 50,434.90 : x
  2. Step 2: Convert to fraction form
    69,024.40/103,645.95 = 50,434.90/x
  3. Step 3: Cross multiply
    69,024.40x = 103,645.95 × 50,434.90
  4. Step 4: Simplify right side
    69,024.40x = 5,227,373,123.66
  5. Step 5: Solve for x
    x = 5,227,373,123.66/69,024.40
  6. Step 6: Final answer
    x = 75,732.25

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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.