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Finding the Fourth Proportional to 185,641.20, 278,461.80 and 60,982.20

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Solution

The fourth proportional to 185,641.20, 278,461.80 and 60,982.20 is: 91,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,641.20 : 278,461.80 = 60,982.20 : x
  2. Step 2: Convert to fraction form
    185,641.20/278,461.80 = 60,982.20/x
  3. Step 3: Cross multiply
    185,641.20x = 278,461.80 × 60,982.20
  4. Step 4: Simplify right side
    185,641.20x = 16,981,213,179.96
  5. Step 5: Solve for x
    x = 16,981,213,179.96/185,641.20
  6. Step 6: Final answer
    x = 91,473.30

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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.