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Finding the Fourth Proportional to 322,412.27, 482,876.88 and 187,141.32

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Solution

The fourth proportional to 322,412.27, 482,876.88 and 187,141.32 is: 280,281.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,412.27 : 482,876.88 = 187,141.32 : x
  2. Step 2: Convert to fraction form
    322,412.27/482,876.88 = 187,141.32/x
  3. Step 3: Cross multiply
    322,412.27x = 482,876.88 × 187,141.32
  4. Step 4: Simplify right side
    322,412.27x = 90,366,216,720.68
  5. Step 5: Solve for x
    x = 90,366,216,720.68/322,412.27
  6. Step 6: Final answer
    x = 280,281.57

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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.