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Finding the Fourth Proportional to 175,344.60, 262,844.10 and 86,611.80

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Solution

The fourth proportional to 175,344.60, 262,844.10 and 86,611.80 is: 129,832.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,344.60 : 262,844.10 = 86,611.80 : x
  2. Step 2: Convert to fraction form
    175,344.60/262,844.10 = 86,611.80/x
  3. Step 3: Cross multiply
    175,344.60x = 262,844.10 × 86,611.80
  4. Step 4: Simplify right side
    175,344.60x = 22,765,400,620.38
  5. Step 5: Solve for x
    x = 22,765,400,620.38/175,344.60
  6. Step 6: Final answer
    x = 129,832.35

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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.