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Finding the Fourth Proportional to 171,897.60, 258,040.80 and 132,628.80

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Solution

The fourth proportional to 171,897.60, 258,040.80 and 132,628.80 is: 199,093.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,897.60 : 258,040.80 = 132,628.80 : x
  2. Step 2: Convert to fraction form
    171,897.60/258,040.80 = 132,628.80/x
  3. Step 3: Cross multiply
    171,897.60x = 258,040.80 × 132,628.80
  4. Step 4: Simplify right side
    171,897.60x = 34,223,641,655.04
  5. Step 5: Solve for x
    x = 34,223,641,655.04/171,897.60
  6. Step 6: Final answer
    x = 199,093.19

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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.