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Finding the Fourth Proportional to 101,618.74, 152,383.96 and 54,223.26

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Solution

The fourth proportional to 101,618.74, 152,383.96 and 54,223.26 is: 81,311.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,618.74 : 152,383.96 = 54,223.26 : x
  2. Step 2: Convert to fraction form
    101,618.74/152,383.96 = 54,223.26/x
  3. Step 3: Cross multiply
    101,618.74x = 152,383.96 × 54,223.26
  4. Step 4: Simplify right side
    101,618.74x = 8,262,755,082.91
  5. Step 5: Solve for x
    x = 8,262,755,082.91/101,618.74
  6. Step 6: Final answer
    x = 81,311.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.