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Finding the Fourth Proportional to 131,847.31, 197,842.02 and 87,494.95

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Solution

The fourth proportional to 131,847.31, 197,842.02 and 87,494.95 is: 131,289.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,847.31 : 197,842.02 = 87,494.95 : x
  2. Step 2: Convert to fraction form
    131,847.31/197,842.02 = 87,494.95/x
  3. Step 3: Cross multiply
    131,847.31x = 197,842.02 × 87,494.95
  4. Step 4: Simplify right side
    131,847.31x = 17,310,177,647.80
  5. Step 5: Solve for x
    x = 17,310,177,647.80/131,847.31
  6. Step 6: Final answer
    x = 131,289.58

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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.