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Finding the Fourth Proportional to 101,755.92, 140,301.14 and 65,932.86

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Solution

The fourth proportional to 101,755.92, 140,301.14 and 65,932.86 is: 90,908.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,755.92 : 140,301.14 = 65,932.86 : x
  2. Step 2: Convert to fraction form
    101,755.92/140,301.14 = 65,932.86/x
  3. Step 3: Cross multiply
    101,755.92x = 140,301.14 × 65,932.86
  4. Step 4: Simplify right side
    101,755.92x = 9,250,455,091.80
  5. Step 5: Solve for x
    x = 9,250,455,091.80/101,755.92
  6. Step 6: Final answer
    x = 90,908.27

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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.