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Finding the Fourth Proportional to 157,446.75, 217,268.67 and 89,454.75

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Solution

The fourth proportional to 157,446.75, 217,268.67 and 89,454.75 is: 123,443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,446.75 : 217,268.67 = 89,454.75 : x
  2. Step 2: Convert to fraction form
    157,446.75/217,268.67 = 89,454.75/x
  3. Step 3: Cross multiply
    157,446.75x = 217,268.67 × 89,454.75
  4. Step 4: Simplify right side
    157,446.75x = 19,435,714,557.68
  5. Step 5: Solve for x
    x = 19,435,714,557.68/157,446.75
  6. Step 6: Final answer
    x = 123,443.10

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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.