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Finding the Fourth Proportional to 79,191.14, 109,285.54 and 45,198.96

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Solution

The fourth proportional to 79,191.14, 109,285.54 and 45,198.96 is: 62,375.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,191.14 : 109,285.54 = 45,198.96 : x
  2. Step 2: Convert to fraction form
    79,191.14/109,285.54 = 45,198.96/x
  3. Step 3: Cross multiply
    79,191.14x = 109,285.54 × 45,198.96
  4. Step 4: Simplify right side
    79,191.14x = 4,939,592,751.04
  5. Step 5: Solve for x
    x = 4,939,592,751.04/79,191.14
  6. Step 6: Final answer
    x = 62,375.57

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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.