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Finding the Fourth Proportional to 171,955.60, 258,127.80 and 132,686.80

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Solution

The fourth proportional to 171,955.60, 258,127.80 and 132,686.80 is: 199,180.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,955.60 : 258,127.80 = 132,686.80 : x
  2. Step 2: Convert to fraction form
    171,955.60/258,127.80 = 132,686.80/x
  3. Step 3: Cross multiply
    171,955.60x = 258,127.80 × 132,686.80
  4. Step 4: Simplify right side
    171,955.60x = 34,250,151,773.04
  5. Step 5: Solve for x
    x = 34,250,151,773.04/171,955.60
  6. Step 6: Final answer
    x = 199,180.21

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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.