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Finding the Fourth Proportional to 80,699.28, 111,354.84 and 44,890.80

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Solution

The fourth proportional to 80,699.28, 111,354.84 and 44,890.80 is: 61,943.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,699.28 : 111,354.84 = 44,890.80 : x
  2. Step 2: Convert to fraction form
    80,699.28/111,354.84 = 44,890.80/x
  3. Step 3: Cross multiply
    80,699.28x = 111,354.84 × 44,890.80
  4. Step 4: Simplify right side
    80,699.28x = 4,998,807,851.47
  5. Step 5: Solve for x
    x = 4,998,807,851.47/80,699.28
  6. Step 6: Final answer
    x = 61,943.65

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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.