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Finding the Fourth Proportional to 157,337.40, 217,232.94 and 120,974.88

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Solution

The fourth proportional to 157,337.40, 217,232.94 and 120,974.88 is: 167,027.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,337.40 : 217,232.94 = 120,974.88 : x
  2. Step 2: Convert to fraction form
    157,337.40/217,232.94 = 120,974.88/x
  3. Step 3: Cross multiply
    157,337.40x = 217,232.94 × 120,974.88
  4. Step 4: Simplify right side
    157,337.40x = 26,279,728,848.55
  5. Step 5: Solve for x
    x = 26,279,728,848.55/157,337.40
  6. Step 6: Final answer
    x = 167,027.86

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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.