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Finding the Fourth Proportional to 80,793, 111,494.82 and 45,465

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Solution

The fourth proportional to 80,793, 111,494.82 and 45,465 is: 62,741.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,793 : 111,494.82 = 45,465 : x
  2. Step 2: Convert to fraction form
    80,793/111,494.82 = 45,465/x
  3. Step 3: Cross multiply
    80,793x = 111,494.82 × 45,465
  4. Step 4: Simplify right side
    80,793x = 5,069,111,991.30
  5. Step 5: Solve for x
    x = 5,069,111,991.30/80,793
  6. Step 6: Final answer
    x = 62,741.97

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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.