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Finding the Fourth Proportional to 425,103.80, 586,648.78 and 234,131.31

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Solution

The fourth proportional to 425,103.80, 586,648.78 and 234,131.31 is: 323,104.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,103.80 : 586,648.78 = 234,131.31 : x
  2. Step 2: Convert to fraction form
    425,103.80/586,648.78 = 234,131.31/x
  3. Step 3: Cross multiply
    425,103.80x = 586,648.78 × 234,131.31
  4. Step 4: Simplify right side
    425,103.80x = 137,352,846,785.97
  5. Step 5: Solve for x
    x = 137,352,846,785.97/425,103.80
  6. Step 6: Final answer
    x = 323,104.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.