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Finding the Fourth Proportional to 159,761.46, 220,459.44 and 89,920.98

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Solution

The fourth proportional to 159,761.46, 220,459.44 and 89,920.98 is: 124,084.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,761.46 : 220,459.44 = 89,920.98 : x
  2. Step 2: Convert to fraction form
    159,761.46/220,459.44 = 89,920.98/x
  3. Step 3: Cross multiply
    159,761.46x = 220,459.44 × 89,920.98
  4. Step 4: Simplify right side
    159,761.46x = 19,823,928,895.05
  5. Step 5: Solve for x
    x = 19,823,928,895.05/159,761.46
  6. Step 6: Final answer
    x = 124,084.55

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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.