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Finding the Fourth Proportional to 101,825.92, 140,517.66 and 55,886.68

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Solution

The fourth proportional to 101,825.92, 140,517.66 and 55,886.68 is: 77,122.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,825.92 : 140,517.66 = 55,886.68 : x
  2. Step 2: Convert to fraction form
    101,825.92/140,517.66 = 55,886.68/x
  3. Step 3: Cross multiply
    101,825.92x = 140,517.66 × 55,886.68
  4. Step 4: Simplify right side
    101,825.92x = 7,853,065,498.77
  5. Step 5: Solve for x
    x = 7,853,065,498.77/101,825.92
  6. Step 6: Final answer
    x = 77,122.46

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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.