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Finding the Fourth Proportional to 262,429.80, 393,644.70 and 181,948.20

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Solution

The fourth proportional to 262,429.80, 393,644.70 and 181,948.20 is: 272,922.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,429.80 : 393,644.70 = 181,948.20 : x
  2. Step 2: Convert to fraction form
    262,429.80/393,644.70 = 181,948.20/x
  3. Step 3: Cross multiply
    262,429.80x = 393,644.70 × 181,948.20
  4. Step 4: Simplify right side
    262,429.80x = 71,622,944,604.54
  5. Step 5: Solve for x
    x = 71,622,944,604.54/262,429.80
  6. Step 6: Final answer
    x = 272,922.30

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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.