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Finding the Fourth Proportional to 215,371.82, 297,213.12 and 119,876.46

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Solution

The fourth proportional to 215,371.82, 297,213.12 and 119,876.46 is: 165,429.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,371.82 : 297,213.12 = 119,876.46 : x
  2. Step 2: Convert to fraction form
    215,371.82/297,213.12 = 119,876.46/x
  3. Step 3: Cross multiply
    215,371.82x = 297,213.12 × 119,876.46
  4. Step 4: Simplify right side
    215,371.82x = 35,628,856,691.16
  5. Step 5: Solve for x
    x = 35,628,856,691.16/215,371.82
  6. Step 6: Final answer
    x = 165,429.52

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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.