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Finding the Fourth Proportional to 224,502.75, 336,809.61 and 66,730.55

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Solution

The fourth proportional to 224,502.75, 336,809.61 and 66,730.55 is: 100,112.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,502.75 : 336,809.61 = 66,730.55 : x
  2. Step 2: Convert to fraction form
    224,502.75/336,809.61 = 66,730.55/x
  3. Step 3: Cross multiply
    224,502.75x = 336,809.61 × 66,730.55
  4. Step 4: Simplify right side
    224,502.75x = 22,475,488,836.54
  5. Step 5: Solve for x
    x = 22,475,488,836.54/224,502.75
  6. Step 6: Final answer
    x = 100,112.31

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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.