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Finding the Fourth Proportional to 224,449.47, 336,616.61 and 66,641.31

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Solution

The fourth proportional to 224,449.47, 336,616.61 and 66,641.31 is: 99,944.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,449.47 : 336,616.61 = 66,641.31 : x
  2. Step 2: Convert to fraction form
    224,449.47/336,616.61 = 66,641.31/x
  3. Step 3: Cross multiply
    224,449.47x = 336,616.61 × 66,641.31
  4. Step 4: Simplify right side
    224,449.47x = 22,432,571,524.95
  5. Step 5: Solve for x
    x = 22,432,571,524.95/224,449.47
  6. Step 6: Final answer
    x = 99,944.86

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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.