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Finding the Fourth Proportional to 80,473.84, 111,042.54 and 48,200.90

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Solution

The fourth proportional to 80,473.84, 111,042.54 and 48,200.90 is: 66,510.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,473.84 : 111,042.54 = 48,200.90 : x
  2. Step 2: Convert to fraction form
    80,473.84/111,042.54 = 48,200.90/x
  3. Step 3: Cross multiply
    80,473.84x = 111,042.54 × 48,200.90
  4. Step 4: Simplify right side
    80,473.84x = 5,352,350,366.29
  5. Step 5: Solve for x
    x = 5,352,350,366.29/80,473.84
  6. Step 6: Final answer
    x = 66,510.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.