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Finding the Fourth Proportional to 442,167.93, 663,249.06 and 126,625.95

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Solution

The fourth proportional to 442,167.93, 663,249.06 and 126,625.95 is: 189,938.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,167.93 : 663,249.06 = 126,625.95 : x
  2. Step 2: Convert to fraction form
    442,167.93/663,249.06 = 126,625.95/x
  3. Step 3: Cross multiply
    442,167.93x = 663,249.06 × 126,625.95
  4. Step 4: Simplify right side
    442,167.93x = 83,984,542,309.11
  5. Step 5: Solve for x
    x = 83,984,542,309.11/442,167.93
  6. Step 6: Final answer
    x = 189,938.11

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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.