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Finding the Fourth Proportional to 135,465.92, 203,237.76 and 88,660.88

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Solution

The fourth proportional to 135,465.92, 203,237.76 and 88,660.88 is: 133,016.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,465.92 : 203,237.76 = 88,660.88 : x
  2. Step 2: Convert to fraction form
    135,465.92/203,237.76 = 88,660.88/x
  3. Step 3: Cross multiply
    135,465.92x = 203,237.76 × 88,660.88
  4. Step 4: Simplify right side
    135,465.92x = 18,019,238,650.83
  5. Step 5: Solve for x
    x = 18,019,238,650.83/135,465.92
  6. Step 6: Final answer
    x = 133,016.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.