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Finding the Fourth Proportional to 80,243.88, 110,738.13 and 48,011.70

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Solution

The fourth proportional to 80,243.88, 110,738.13 and 48,011.70 is: 66,257.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,243.88 : 110,738.13 = 48,011.70 : x
  2. Step 2: Convert to fraction form
    80,243.88/110,738.13 = 48,011.70/x
  3. Step 3: Cross multiply
    80,243.88x = 110,738.13 × 48,011.70
  4. Step 4: Simplify right side
    80,243.88x = 5,316,725,876.12
  5. Step 5: Solve for x
    x = 5,316,725,876.12/80,243.88
  6. Step 6: Final answer
    x = 66,257.09

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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.