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Finding the Fourth Proportional to 77,581.70, 107,062.83 and 44,047.70

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Solution

The fourth proportional to 77,581.70, 107,062.83 and 44,047.70 is: 60,785.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,581.70 : 107,062.83 = 44,047.70 : x
  2. Step 2: Convert to fraction form
    77,581.70/107,062.83 = 44,047.70/x
  3. Step 3: Cross multiply
    77,581.70x = 107,062.83 × 44,047.70
  4. Step 4: Simplify right side
    77,581.70x = 4,715,870,881.68
  5. Step 5: Solve for x
    x = 4,715,870,881.68/77,581.70
  6. Step 6: Final answer
    x = 60,785.87

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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.