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Finding the Fourth Proportional to 474,805.80, 712,279.08 and 137,849.22

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Solution

The fourth proportional to 474,805.80, 712,279.08 and 137,849.22 is: 206,794.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,805.80 : 712,279.08 = 137,849.22 : x
  2. Step 2: Convert to fraction form
    474,805.80/712,279.08 = 137,849.22/x
  3. Step 3: Cross multiply
    474,805.80x = 712,279.08 × 137,849.22
  4. Step 4: Simplify right side
    474,805.80x = 98,187,115,600.32
  5. Step 5: Solve for x
    x = 98,187,115,600.32/474,805.80
  6. Step 6: Final answer
    x = 206,794.26

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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.