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Finding the Fourth Proportional to 156,959.10, 235,049.85 and 125,855.10

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Solution

The fourth proportional to 156,959.10, 235,049.85 and 125,855.10 is: 188,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,959.10 : 235,049.85 = 125,855.10 : x
  2. Step 2: Convert to fraction form
    156,959.10/235,049.85 = 125,855.10/x
  3. Step 3: Cross multiply
    156,959.10x = 235,049.85 × 125,855.10
  4. Step 4: Simplify right side
    156,959.10x = 29,582,222,376.74
  5. Step 5: Solve for x
    x = 29,582,222,376.74/156,959.10
  6. Step 6: Final answer
    x = 188,470.90

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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.