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Finding the Fourth Proportional to 73,632.80, 110,449.20 and 67,930.40

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Solution

The fourth proportional to 73,632.80, 110,449.20 and 67,930.40 is: 101,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,632.80 : 110,449.20 = 67,930.40 : x
  2. Step 2: Convert to fraction form
    73,632.80/110,449.20 = 67,930.40/x
  3. Step 3: Cross multiply
    73,632.80x = 110,449.20 × 67,930.40
  4. Step 4: Simplify right side
    73,632.80x = 7,502,858,335.68
  5. Step 5: Solve for x
    x = 7,502,858,335.68/73,632.80
  6. Step 6: Final answer
    x = 101,895.60

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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.