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Finding the Fourth Proportional to 159,691.14, 220,389.35 and 119,334.83

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Solution

The fourth proportional to 159,691.14, 220,389.35 and 119,334.83 is: 164,693.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,691.14 : 220,389.35 = 119,334.83 : x
  2. Step 2: Convert to fraction form
    159,691.14/220,389.35 = 119,334.83/x
  3. Step 3: Cross multiply
    159,691.14x = 220,389.35 × 119,334.83
  4. Step 4: Simplify right side
    159,691.14x = 26,300,123,917.44
  5. Step 5: Solve for x
    x = 26,300,123,917.44/159,691.14
  6. Step 6: Final answer
    x = 164,693.70

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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.