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Finding the Fourth Proportional to 132,670.80, 199,006.20 and 79,526.70

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Solution

The fourth proportional to 132,670.80, 199,006.20 and 79,526.70 is: 119,290.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,670.80 : 199,006.20 = 79,526.70 : x
  2. Step 2: Convert to fraction form
    132,670.80/199,006.20 = 79,526.70/x
  3. Step 3: Cross multiply
    132,670.80x = 199,006.20 × 79,526.70
  4. Step 4: Simplify right side
    132,670.80x = 15,826,306,365.54
  5. Step 5: Solve for x
    x = 15,826,306,365.54/132,670.80
  6. Step 6: Final answer
    x = 119,290.05

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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.