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Finding the Fourth Proportional to 79,554.67, 109,758.13 and 49,329.12

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Solution

The fourth proportional to 79,554.67, 109,758.13 and 49,329.12 is: 68,057.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,554.67 : 109,758.13 = 49,329.12 : x
  2. Step 2: Convert to fraction form
    79,554.67/109,758.13 = 49,329.12/x
  3. Step 3: Cross multiply
    79,554.67x = 109,758.13 × 49,329.12
  4. Step 4: Simplify right side
    79,554.67x = 5,414,271,170.31
  5. Step 5: Solve for x
    x = 5,414,271,170.31/79,554.67
  6. Step 6: Final answer
    x = 68,057.24

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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.