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Finding the Fourth Proportional to 101,843.97, 140,546.19 and 56,524.87

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Solution

The fourth proportional to 101,843.97, 140,546.19 and 56,524.87 is: 78,005.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,843.97 : 140,546.19 = 56,524.87 : x
  2. Step 2: Convert to fraction form
    101,843.97/140,546.19 = 56,524.87/x
  3. Step 3: Cross multiply
    101,843.97x = 140,546.19 × 56,524.87
  4. Step 4: Simplify right side
    101,843.97x = 7,944,355,118.75
  5. Step 5: Solve for x
    x = 7,944,355,118.75/101,843.97
  6. Step 6: Final answer
    x = 78,005.16

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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.