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Finding the Fourth Proportional to 146,843.10, 220,264.65 and 100,187.10

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Solution

The fourth proportional to 146,843.10, 220,264.65 and 100,187.10 is: 150,280.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,843.10 : 220,264.65 = 100,187.10 : x
  2. Step 2: Convert to fraction form
    146,843.10/220,264.65 = 100,187.10/x
  3. Step 3: Cross multiply
    146,843.10x = 220,264.65 × 100,187.10
  4. Step 4: Simplify right side
    146,843.10x = 22,067,676,516.02
  5. Step 5: Solve for x
    x = 22,067,676,516.02/146,843.10
  6. Step 6: Final answer
    x = 150,280.65

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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.