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Finding the Fourth Proportional to 79,559.82, 109,813.14 and 49,327.38

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Solution

The fourth proportional to 79,559.82, 109,813.14 and 49,327.38 is: 68,084.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,559.82 : 109,813.14 = 49,327.38 : x
  2. Step 2: Convert to fraction form
    79,559.82/109,813.14 = 49,327.38/x
  3. Step 3: Cross multiply
    79,559.82x = 109,813.14 × 49,327.38
  4. Step 4: Simplify right side
    79,559.82x = 5,416,794,485.77
  5. Step 5: Solve for x
    x = 5,416,794,485.77/79,559.82
  6. Step 6: Final answer
    x = 68,084.55

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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.