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Finding the Fourth Proportional to 79,793.15, 110,083.65 and 45,789.35

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Solution

The fourth proportional to 79,793.15, 110,083.65 and 45,789.35 is: 63,171.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,793.15 : 110,083.65 = 45,789.35 : x
  2. Step 2: Convert to fraction form
    79,793.15/110,083.65 = 45,789.35/x
  3. Step 3: Cross multiply
    79,793.15x = 110,083.65 × 45,789.35
  4. Step 4: Simplify right side
    79,793.15x = 5,040,658,228.71
  5. Step 5: Solve for x
    x = 5,040,658,228.71/79,793.15
  6. Step 6: Final answer
    x = 63,171.57

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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.