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Finding the Fourth Proportional to 267,702.40, 401,641.08 and 192,761.20

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Solution

The fourth proportional to 267,702.40, 401,641.08 and 192,761.20 is: 289,204.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,702.40 : 401,641.08 = 192,761.20 : x
  2. Step 2: Convert to fraction form
    267,702.40/401,641.08 = 192,761.20/x
  3. Step 3: Cross multiply
    267,702.40x = 401,641.08 × 192,761.20
  4. Step 4: Simplify right side
    267,702.40x = 77,420,816,550.10
  5. Step 5: Solve for x
    x = 77,420,816,550.10/267,702.40
  6. Step 6: Final answer
    x = 289,204.79

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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.