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Finding the Fourth Proportional to 87,593.19, 120,866.49 and 49,346.34

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Solution

The fourth proportional to 87,593.19, 120,866.49 and 49,346.34 is: 68,091.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,593.19 : 120,866.49 = 49,346.34 : x
  2. Step 2: Convert to fraction form
    87,593.19/120,866.49 = 49,346.34/x
  3. Step 3: Cross multiply
    87,593.19x = 120,866.49 × 49,346.34
  4. Step 4: Simplify right side
    87,593.19x = 5,964,318,910.15
  5. Step 5: Solve for x
    x = 5,964,318,910.15/87,593.19
  6. Step 6: Final answer
    x = 68,091.13

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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.