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Finding the Fourth Proportional to 171,219.60, 235,793.16 and 123,397.20

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Solution

The fourth proportional to 171,219.60, 235,793.16 and 123,397.20 is: 169,935.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,219.60 : 235,793.16 = 123,397.20 : x
  2. Step 2: Convert to fraction form
    171,219.60/235,793.16 = 123,397.20/x
  3. Step 3: Cross multiply
    171,219.60x = 235,793.16 × 123,397.20
  4. Step 4: Simplify right side
    171,219.60x = 29,096,215,723.15
  5. Step 5: Solve for x
    x = 29,096,215,723.15/171,219.60
  6. Step 6: Final answer
    x = 169,935.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.