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Finding the Fourth Proportional to 171,900.60, 258,045.30 and 132,631.80

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Solution

The fourth proportional to 171,900.60, 258,045.30 and 132,631.80 is: 199,097.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,900.60 : 258,045.30 = 132,631.80 : x
  2. Step 2: Convert to fraction form
    171,900.60/258,045.30 = 132,631.80/x
  3. Step 3: Cross multiply
    171,900.60x = 258,045.30 × 132,631.80
  4. Step 4: Simplify right side
    171,900.60x = 34,225,012,620.54
  5. Step 5: Solve for x
    x = 34,225,012,620.54/171,900.60
  6. Step 6: Final answer
    x = 199,097.69

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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.