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Finding the Fourth Proportional to 442,184.22, 663,273.72 and 126,641.16

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Solution

The fourth proportional to 442,184.22, 663,273.72 and 126,641.16 is: 189,960.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,184.22 : 663,273.72 = 126,641.16 : x
  2. Step 2: Convert to fraction form
    442,184.22/663,273.72 = 126,641.16/x
  3. Step 3: Cross multiply
    442,184.22x = 663,273.72 × 126,641.16
  4. Step 4: Simplify right side
    442,184.22x = 83,997,753,298.32
  5. Step 5: Solve for x
    x = 83,997,753,298.32/442,184.22
  6. Step 6: Final answer
    x = 189,960.99

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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.