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Finding the Fourth Proportional to 243,278.80, 335,700.92 and 166,863.18

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Solution

The fourth proportional to 243,278.80, 335,700.92 and 166,863.18 is: 230,254.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,278.80 : 335,700.92 = 166,863.18 : x
  2. Step 2: Convert to fraction form
    243,278.80/335,700.92 = 166,863.18/x
  3. Step 3: Cross multiply
    243,278.80x = 335,700.92 × 166,863.18
  4. Step 4: Simplify right side
    243,278.80x = 56,016,123,040.13
  5. Step 5: Solve for x
    x = 56,016,123,040.13/243,278.80
  6. Step 6: Final answer
    x = 230,254.85

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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.