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Finding the Fourth Proportional to 216,001.88, 298,082.78 and 120,508.59

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Solution

The fourth proportional to 216,001.88, 298,082.78 and 120,508.59 is: 166,301.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,001.88 : 298,082.78 = 120,508.59 : x
  2. Step 2: Convert to fraction form
    216,001.88/298,082.78 = 120,508.59/x
  3. Step 3: Cross multiply
    216,001.88x = 298,082.78 × 120,508.59
  4. Step 4: Simplify right side
    216,001.88x = 35,921,535,521.08
  5. Step 5: Solve for x
    x = 35,921,535,521.08/216,001.88
  6. Step 6: Final answer
    x = 166,301.96

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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.