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Finding the Fourth Proportional to 101,674.92, 140,309.71 and 56,352.76

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Solution

The fourth proportional to 101,674.92, 140,309.71 and 56,352.76 is: 77,765.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,674.92 : 140,309.71 = 56,352.76 : x
  2. Step 2: Convert to fraction form
    101,674.92/140,309.71 = 56,352.76/x
  3. Step 3: Cross multiply
    101,674.92x = 140,309.71 × 56,352.76
  4. Step 4: Simplify right side
    101,674.92x = 7,906,839,413.30
  5. Step 5: Solve for x
    x = 7,906,839,413.30/101,674.92
  6. Step 6: Final answer
    x = 77,765.88

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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.