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Finding the Fourth Proportional to 172,453.87, 237,990.88 and 95,978.12

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Solution

The fourth proportional to 172,453.87, 237,990.88 and 95,978.12 is: 132,452.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,453.87 : 237,990.88 = 95,978.12 : x
  2. Step 2: Convert to fraction form
    172,453.87/237,990.88 = 95,978.12/x
  3. Step 3: Cross multiply
    172,453.87x = 237,990.88 × 95,978.12
  4. Step 4: Simplify right side
    172,453.87x = 22,841,917,239.55
  5. Step 5: Solve for x
    x = 22,841,917,239.55/172,453.87
  6. Step 6: Final answer
    x = 132,452.33

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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.