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Finding the Fourth Proportional to 79,169.19, 109,250.54 and 43,359.49

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Solution

The fourth proportional to 79,169.19, 109,250.54 and 43,359.49 is: 59,834.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,169.19 : 109,250.54 = 43,359.49 : x
  2. Step 2: Convert to fraction form
    79,169.19/109,250.54 = 43,359.49/x
  3. Step 3: Cross multiply
    79,169.19x = 109,250.54 × 43,359.49
  4. Step 4: Simplify right side
    79,169.19x = 4,737,047,479.83
  5. Step 5: Solve for x
    x = 4,737,047,479.83/79,169.19
  6. Step 6: Final answer
    x = 59,834.49

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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.