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Finding the Fourth Proportional to 83,950.80, 125,926.20 and 74,109.30

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Solution

The fourth proportional to 83,950.80, 125,926.20 and 74,109.30 is: 111,163.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,950.80 : 125,926.20 = 74,109.30 : x
  2. Step 2: Convert to fraction form
    83,950.80/125,926.20 = 74,109.30/x
  3. Step 3: Cross multiply
    83,950.80x = 125,926.20 × 74,109.30
  4. Step 4: Simplify right side
    83,950.80x = 9,332,302,533.66
  5. Step 5: Solve for x
    x = 9,332,302,533.66/83,950.80
  6. Step 6: Final answer
    x = 111,163.95

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1.5x scale

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.