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Finding the Fourth Proportional to 79,709.49, 110,002.32 and 43,902.90

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Solution

The fourth proportional to 79,709.49, 110,002.32 and 43,902.90 is: 60,587.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,709.49 : 110,002.32 = 43,902.90 : x
  2. Step 2: Convert to fraction form
    79,709.49/110,002.32 = 43,902.90/x
  3. Step 3: Cross multiply
    79,709.49x = 110,002.32 × 43,902.90
  4. Step 4: Simplify right side
    79,709.49x = 4,829,420,854.73
  5. Step 5: Solve for x
    x = 4,829,420,854.73/79,709.49
  6. Step 6: Final answer
    x = 60,587.78

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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.