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Finding the Fourth Proportional to 172,115.60, 257,799.53 and 83,182.59

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Solution

The fourth proportional to 172,115.60, 257,799.53 and 83,182.59 is: 124,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,115.60 : 257,799.53 = 83,182.59 : x
  2. Step 2: Convert to fraction form
    172,115.60/257,799.53 = 83,182.59/x
  3. Step 3: Cross multiply
    172,115.60x = 257,799.53 × 83,182.59
  4. Step 4: Simplify right side
    172,115.60x = 21,444,432,190.27
  5. Step 5: Solve for x
    x = 21,444,432,190.27/172,115.60
  6. Step 6: Final answer
    x = 124,593.20

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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.