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Finding the Fourth Proportional to 187,107.60, 281,352.60 and 156,694.80

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Solution

The fourth proportional to 187,107.60, 281,352.60 and 156,694.80 is: 235,621.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,107.60 : 281,352.60 = 156,694.80 : x
  2. Step 2: Convert to fraction form
    187,107.60/281,352.60 = 156,694.80/x
  3. Step 3: Cross multiply
    187,107.60x = 281,352.60 × 156,694.80
  4. Step 4: Simplify right side
    187,107.60x = 44,086,489,386.48
  5. Step 5: Solve for x
    x = 44,086,489,386.48/187,107.60
  6. Step 6: Final answer
    x = 235,621.05

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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.