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Finding the Fourth Proportional to 155,354.52, 232,530.48 and 80,371.44

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Solution

The fourth proportional to 155,354.52, 232,530.48 and 80,371.44 is: 120,297.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,354.52 : 232,530.48 = 80,371.44 : x
  2. Step 2: Convert to fraction form
    155,354.52/232,530.48 = 80,371.44/x
  3. Step 3: Cross multiply
    155,354.52x = 232,530.48 × 80,371.44
  4. Step 4: Simplify right side
    155,354.52x = 18,688,809,521.49
  5. Step 5: Solve for x
    x = 18,688,809,521.49/155,354.52
  6. Step 6: Final answer
    x = 120,297.82

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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.