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Finding the Fourth Proportional to 159,884.83, 220,635.28 and 88,263.31

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Solution

The fourth proportional to 159,884.83, 220,635.28 and 88,263.31 is: 121,800.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,884.83 : 220,635.28 = 88,263.31 : x
  2. Step 2: Convert to fraction form
    159,884.83/220,635.28 = 88,263.31/x
  3. Step 3: Cross multiply
    159,884.83x = 220,635.28 × 88,263.31
  4. Step 4: Simplify right side
    159,884.83x = 19,474,000,998.14
  5. Step 5: Solve for x
    x = 19,474,000,998.14/159,884.83
  6. Step 6: Final answer
    x = 121,800.18

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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.