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Finding the Fourth Proportional to 171,781.28, 257,689.56 and 59,461.32

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Solution

The fourth proportional to 171,781.28, 257,689.56 and 59,461.32 is: 89,198.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,781.28 : 257,689.56 = 59,461.32 : x
  2. Step 2: Convert to fraction form
    171,781.28/257,689.56 = 59,461.32/x
  3. Step 3: Cross multiply
    171,781.28x = 257,689.56 × 59,461.32
  4. Step 4: Simplify right side
    171,781.28x = 15,322,561,387.82
  5. Step 5: Solve for x
    x = 15,322,561,387.82/171,781.28
  6. Step 6: Final answer
    x = 89,198.09

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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.