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Finding the Fourth Proportional to 175,343.60, 262,842.60 and 86,610.80

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Solution

The fourth proportional to 175,343.60, 262,842.60 and 86,610.80 is: 129,830.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,343.60 : 262,842.60 = 86,610.80 : x
  2. Step 2: Convert to fraction form
    175,343.60/262,842.60 = 86,610.80/x
  3. Step 3: Cross multiply
    175,343.60x = 262,842.60 × 86,610.80
  4. Step 4: Simplify right side
    175,343.60x = 22,765,007,860.08
  5. Step 5: Solve for x
    x = 22,765,007,860.08/175,343.60
  6. Step 6: Final answer
    x = 129,830.85

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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.