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Finding the Fourth Proportional to 159,884.16, 220,600.32 and 117,367.68

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Solution

The fourth proportional to 159,884.16, 220,600.32 and 117,367.68 is: 161,938.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,884.16 : 220,600.32 = 117,367.68 : x
  2. Step 2: Convert to fraction form
    159,884.16/220,600.32 = 117,367.68/x
  3. Step 3: Cross multiply
    159,884.16x = 220,600.32 × 117,367.68
  4. Step 4: Simplify right side
    159,884.16x = 25,891,347,765.66
  5. Step 5: Solve for x
    x = 25,891,347,765.66/159,884.16
  6. Step 6: Final answer
    x = 161,938.17

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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.