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Finding the Fourth Proportional to 176,920.20, 265,380.30 and 169,921.80

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Solution

The fourth proportional to 176,920.20, 265,380.30 and 169,921.80 is: 254,882.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,920.20 : 265,380.30 = 169,921.80 : x
  2. Step 2: Convert to fraction form
    176,920.20/265,380.30 = 169,921.80/x
  3. Step 3: Cross multiply
    176,920.20x = 265,380.30 × 169,921.80
  4. Step 4: Simplify right side
    176,920.20x = 45,093,898,260.54
  5. Step 5: Solve for x
    x = 45,093,898,260.54/176,920.20
  6. Step 6: Final answer
    x = 254,882.70

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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.