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Finding the Fourth Proportional to 187,893.20, 259,155.24 and 119,956.88

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Solution

The fourth proportional to 187,893.20, 259,155.24 and 119,956.88 is: 165,452.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,893.20 : 259,155.24 = 119,956.88 : x
  2. Step 2: Convert to fraction form
    187,893.20/259,155.24 = 119,956.88/x
  3. Step 3: Cross multiply
    187,893.20x = 259,155.24 × 119,956.88
  4. Step 4: Simplify right side
    187,893.20x = 31,087,454,026.05
  5. Step 5: Solve for x
    x = 31,087,454,026.05/187,893.20
  6. Step 6: Final answer
    x = 165,452.79

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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.