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Finding the Fourth Proportional to 171,691.16, 257,573.66 and 57,850.28

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Solution

The fourth proportional to 171,691.16, 257,573.66 and 57,850.28 is: 86,787.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,691.16 : 257,573.66 = 57,850.28 : x
  2. Step 2: Convert to fraction form
    171,691.16/257,573.66 = 57,850.28/x
  3. Step 3: Cross multiply
    171,691.16x = 257,573.66 × 57,850.28
  4. Step 4: Simplify right side
    171,691.16x = 14,900,708,351.62
  5. Step 5: Solve for x
    x = 14,900,708,351.62/171,691.16
  6. Step 6: Final answer
    x = 86,787.86

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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.