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Finding the Fourth Proportional to 80,340.30, 120,509.82 and 24,180.17

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Solution

The fourth proportional to 80,340.30, 120,509.82 and 24,180.17 is: 36,270.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,340.30 : 120,509.82 = 24,180.17 : x
  2. Step 2: Convert to fraction form
    80,340.30/120,509.82 = 24,180.17/x
  3. Step 3: Cross multiply
    80,340.30x = 120,509.82 × 24,180.17
  4. Step 4: Simplify right side
    80,340.30x = 2,913,947,331.72
  5. Step 5: Solve for x
    x = 2,913,947,331.72/80,340.30
  6. Step 6: Final answer
    x = 36,270.06

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1.5x scale

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.