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Finding the Fourth Proportional to 283,908.56, 425,862.20 and 115,520.32

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Solution

The fourth proportional to 283,908.56, 425,862.20 and 115,520.32 is: 173,280.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,908.56 : 425,862.20 = 115,520.32 : x
  2. Step 2: Convert to fraction form
    283,908.56/425,862.20 = 115,520.32/x
  3. Step 3: Cross multiply
    283,908.56x = 425,862.20 × 115,520.32
  4. Step 4: Simplify right side
    283,908.56x = 49,195,737,619.90
  5. Step 5: Solve for x
    x = 49,195,737,619.90/283,908.56
  6. Step 6: Final answer
    x = 173,280.22

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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.