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Finding the Fourth Proportional to 159,856.64, 220,600.94 and 88,236.66

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Solution

The fourth proportional to 159,856.64, 220,600.94 and 88,236.66 is: 121,765.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,856.64 : 220,600.94 = 88,236.66 : x
  2. Step 2: Convert to fraction form
    159,856.64/220,600.94 = 88,236.66/x
  3. Step 3: Cross multiply
    159,856.64x = 220,600.94 × 88,236.66
  4. Step 4: Simplify right side
    159,856.64x = 19,465,090,138.46
  5. Step 5: Solve for x
    x = 19,465,090,138.46/159,856.64
  6. Step 6: Final answer
    x = 121,765.92

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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.