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Finding the Fourth Proportional to 79,674.58, 109,948.78 and 43,864.86

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Solution

The fourth proportional to 79,674.58, 109,948.78 and 43,864.86 is: 60,532.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,674.58 : 109,948.78 = 43,864.86 : x
  2. Step 2: Convert to fraction form
    79,674.58/109,948.78 = 43,864.86/x
  3. Step 3: Cross multiply
    79,674.58x = 109,948.78 × 43,864.86
  4. Step 4: Simplify right side
    79,674.58x = 4,822,887,292.13
  5. Step 5: Solve for x
    x = 4,822,887,292.13/79,674.58
  6. Step 6: Final answer
    x = 60,532.33

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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.