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Finding the Fourth Proportional to 179,265.80, 268,898.70 and 74,160.20

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Solution

The fourth proportional to 179,265.80, 268,898.70 and 74,160.20 is: 111,240.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,265.80 : 268,898.70 = 74,160.20 : x
  2. Step 2: Convert to fraction form
    179,265.80/268,898.70 = 74,160.20/x
  3. Step 3: Cross multiply
    179,265.80x = 268,898.70 × 74,160.20
  4. Step 4: Simplify right side
    179,265.80x = 19,941,581,371.74
  5. Step 5: Solve for x
    x = 19,941,581,371.74/179,265.80
  6. Step 6: Final answer
    x = 111,240.30

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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.