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Finding the Fourth Proportional to 172,347.25, 258,763.08 and 88,167.80

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Solution

The fourth proportional to 172,347.25, 258,763.08 and 88,167.80 is: 132,375.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,347.25 : 258,763.08 = 88,167.80 : x
  2. Step 2: Convert to fraction form
    172,347.25/258,763.08 = 88,167.80/x
  3. Step 3: Cross multiply
    172,347.25x = 258,763.08 × 88,167.80
  4. Step 4: Simplify right side
    172,347.25x = 22,814,571,484.82
  5. Step 5: Solve for x
    x = 22,814,571,484.82/172,347.25
  6. Step 6: Final answer
    x = 132,375.60

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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.