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Finding the Fourth Proportional to 79,452.74, 109,617.62 and 45,448.84

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Solution

The fourth proportional to 79,452.74, 109,617.62 and 45,448.84 is: 62,703.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,452.74 : 109,617.62 = 45,448.84 : x
  2. Step 2: Convert to fraction form
    79,452.74/109,617.62 = 45,448.84/x
  3. Step 3: Cross multiply
    79,452.74x = 109,617.62 × 45,448.84
  4. Step 4: Simplify right side
    79,452.74x = 4,981,993,124.47
  5. Step 5: Solve for x
    x = 4,981,993,124.47/79,452.74
  6. Step 6: Final answer
    x = 62,703.86

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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.