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Finding the Fourth Proportional to 215,079.38, 296,724.30 and 124,418.54

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Solution

The fourth proportional to 215,079.38, 296,724.30 and 124,418.54 is: 171,648.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,079.38 : 296,724.30 = 124,418.54 : x
  2. Step 2: Convert to fraction form
    215,079.38/296,724.30 = 124,418.54/x
  3. Step 3: Cross multiply
    215,079.38x = 296,724.30 × 124,418.54
  4. Step 4: Simplify right side
    215,079.38x = 36,918,004,188.52
  5. Step 5: Solve for x
    x = 36,918,004,188.52/215,079.38
  6. Step 6: Final answer
    x = 171,648.27

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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.