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Finding the Fourth Proportional to 150,595.10, 207,819.30 and 86,063.61

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Solution

The fourth proportional to 150,595.10, 207,819.30 and 86,063.61 is: 118,766.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,595.10 : 207,819.30 = 86,063.61 : x
  2. Step 2: Convert to fraction form
    150,595.10/207,819.30 = 86,063.61/x
  3. Step 3: Cross multiply
    150,595.10x = 207,819.30 × 86,063.61
  4. Step 4: Simplify right side
    150,595.10x = 17,885,680,287.73
  5. Step 5: Solve for x
    x = 17,885,680,287.73/150,595.10
  6. Step 6: Final answer
    x = 118,766.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.