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Finding the Fourth Proportional to 132,902.86, 199,030.44 and 87,896.80

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Solution

The fourth proportional to 132,902.86, 199,030.44 and 87,896.80 is: 131,631.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,902.86 : 199,030.44 = 87,896.80 : x
  2. Step 2: Convert to fraction form
    132,902.86/199,030.44 = 87,896.80/x
  3. Step 3: Cross multiply
    132,902.86x = 199,030.44 × 87,896.80
  4. Step 4: Simplify right side
    132,902.86x = 17,494,138,778.59
  5. Step 5: Solve for x
    x = 17,494,138,778.59/132,902.86
  6. Step 6: Final answer
    x = 131,631.02

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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.