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Finding the Fourth Proportional to 80,329.78, 110,855.37 and 48,498.94

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Solution

The fourth proportional to 80,329.78, 110,855.37 and 48,498.94 is: 66,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,329.78 : 110,855.37 = 48,498.94 : x
  2. Step 2: Convert to fraction form
    80,329.78/110,855.37 = 48,498.94/x
  3. Step 3: Cross multiply
    80,329.78x = 110,855.37 × 48,498.94
  4. Step 4: Simplify right side
    80,329.78x = 5,376,367,938.31
  5. Step 5: Solve for x
    x = 5,376,367,938.31/80,329.78
  6. Step 6: Final answer
    x = 66,928.70

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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.