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Finding the Fourth Proportional to 79,953.67, 110,340.39 and 44,143.57

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Solution

The fourth proportional to 79,953.67, 110,340.39 and 44,143.57 is: 60,920.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,953.67 : 110,340.39 = 44,143.57 : x
  2. Step 2: Convert to fraction form
    79,953.67/110,340.39 = 44,143.57/x
  3. Step 3: Cross multiply
    79,953.67x = 110,340.39 × 44,143.57
  4. Step 4: Simplify right side
    79,953.67x = 4,870,818,729.79
  5. Step 5: Solve for x
    x = 4,870,818,729.79/79,953.67
  6. Step 6: Final answer
    x = 60,920.51

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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.