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Finding the Fourth Proportional to 81,601.92, 122,402.46 and 44,398.49

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Solution

The fourth proportional to 81,601.92, 122,402.46 and 44,398.49 is: 66,597.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,601.92 : 122,402.46 = 44,398.49 : x
  2. Step 2: Convert to fraction form
    81,601.92/122,402.46 = 44,398.49/x
  3. Step 3: Cross multiply
    81,601.92x = 122,402.46 × 44,398.49
  4. Step 4: Simplify right side
    81,601.92x = 5,434,484,655.32
  5. Step 5: Solve for x
    x = 5,434,484,655.32/81,601.92
  6. Step 6: Final answer
    x = 66,597.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.