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Finding the Fourth Proportional to 207,326.46, 310,866.98 and 80,819.03

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Solution

The fourth proportional to 207,326.46, 310,866.98 and 80,819.03 is: 121,180.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,326.46 : 310,866.98 = 80,819.03 : x
  2. Step 2: Convert to fraction form
    207,326.46/310,866.98 = 80,819.03/x
  3. Step 3: Cross multiply
    207,326.46x = 310,866.98 × 80,819.03
  4. Step 4: Simplify right side
    207,326.46x = 25,123,965,824.20
  5. Step 5: Solve for x
    x = 25,123,965,824.20/207,326.46
  6. Step 6: Final answer
    x = 121,180.70

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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.