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Finding the Fourth Proportional to 159,483.82, 220,087.14 and 87,863.22

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Solution

The fourth proportional to 159,483.82, 220,087.14 and 87,863.22 is: 121,250.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,483.82 : 220,087.14 = 87,863.22 : x
  2. Step 2: Convert to fraction form
    159,483.82/220,087.14 = 87,863.22/x
  3. Step 3: Cross multiply
    159,483.82x = 220,087.14 × 87,863.22
  4. Step 4: Simplify right side
    159,483.82x = 19,337,564,800.99
  5. Step 5: Solve for x
    x = 19,337,564,800.99/159,483.82
  6. Step 6: Final answer
    x = 121,250.95

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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.