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Finding the Fourth Proportional to 148,609.17, 222,742.04 and 68,479.61

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Solution

The fourth proportional to 148,609.17, 222,742.04 and 68,479.61 is: 102,640.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,609.17 : 222,742.04 = 68,479.61 : x
  2. Step 2: Convert to fraction form
    148,609.17/222,742.04 = 68,479.61/x
  3. Step 3: Cross multiply
    148,609.17x = 222,742.04 × 68,479.61
  4. Step 4: Simplify right side
    148,609.17x = 15,253,286,573.70
  5. Step 5: Solve for x
    x = 15,253,286,573.70/148,609.17
  6. Step 6: Final answer
    x = 102,640.28

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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.