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Finding the Fourth Proportional to 79,810.75, 110,143.80 and 44,000.71

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Solution

The fourth proportional to 79,810.75, 110,143.80 and 44,000.71 is: 60,723.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,810.75 : 110,143.80 = 44,000.71 : x
  2. Step 2: Convert to fraction form
    79,810.75/110,143.80 = 44,000.71/x
  3. Step 3: Cross multiply
    79,810.75x = 110,143.80 × 44,000.71
  4. Step 4: Simplify right side
    79,810.75x = 4,846,405,126.74
  5. Step 5: Solve for x
    x = 4,846,405,126.74/79,810.75
  6. Step 6: Final answer
    x = 60,723.71

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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.