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Finding the Fourth Proportional to 159,885.11, 220,635.67 and 88,263.60

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Solution

The fourth proportional to 159,885.11, 220,635.67 and 88,263.60 is: 121,800.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,885.11 : 220,635.67 = 88,263.60 : x
  2. Step 2: Convert to fraction form
    159,885.11/220,635.67 = 88,263.60/x
  3. Step 3: Cross multiply
    159,885.11x = 220,635.67 × 88,263.60
  4. Step 4: Simplify right side
    159,885.11x = 19,474,097,805.56
  5. Step 5: Solve for x
    x = 19,474,097,805.56/159,885.11
  6. Step 6: Final answer
    x = 121,800.57

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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.