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Finding the Fourth Proportional to 216,446.15, 298,691.28 and 119,654.09

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Solution

The fourth proportional to 216,446.15, 298,691.28 and 119,654.09 is: 165,120.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,446.15 : 298,691.28 = 119,654.09 : x
  2. Step 2: Convert to fraction form
    216,446.15/298,691.28 = 119,654.09/x
  3. Step 3: Cross multiply
    216,446.15x = 298,691.28 × 119,654.09
  4. Step 4: Simplify right side
    216,446.15x = 35,739,633,299.34
  5. Step 5: Solve for x
    x = 35,739,633,299.34/216,446.15
  6. Step 6: Final answer
    x = 165,120.21

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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.