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Finding the Fourth Proportional to 169,660.80, 254,491.20 and 155,226.60

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Solution

The fourth proportional to 169,660.80, 254,491.20 and 155,226.60 is: 232,839.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,660.80 : 254,491.20 = 155,226.60 : x
  2. Step 2: Convert to fraction form
    169,660.80/254,491.20 = 155,226.60/x
  3. Step 3: Cross multiply
    169,660.80x = 254,491.20 × 155,226.60
  4. Step 4: Simplify right side
    169,660.80x = 39,503,803,705.92
  5. Step 5: Solve for x
    x = 39,503,803,705.92/169,660.80
  6. Step 6: Final answer
    x = 232,839.90

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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.