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Finding the Fourth Proportional to 79,574.60, 109,813.73 and 43,764.86

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Solution

The fourth proportional to 79,574.60, 109,813.73 and 43,764.86 is: 60,395.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,574.60 : 109,813.73 = 43,764.86 : x
  2. Step 2: Convert to fraction form
    79,574.60/109,813.73 = 43,764.86/x
  3. Step 3: Cross multiply
    79,574.60x = 109,813.73 × 43,764.86
  4. Step 4: Simplify right side
    79,574.60x = 4,805,981,751.63
  5. Step 5: Solve for x
    x = 4,805,981,751.63/79,574.60
  6. Step 6: Final answer
    x = 60,395.93

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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.