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Finding the Fourth Proportional to 79,152.48, 109,230.39 and 43,344.66

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Solution

The fourth proportional to 79,152.48, 109,230.39 and 43,344.66 is: 59,815.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,152.48 : 109,230.39 = 43,344.66 : x
  2. Step 2: Convert to fraction form
    79,152.48/109,230.39 = 43,344.66/x
  3. Step 3: Cross multiply
    79,152.48x = 109,230.39 × 43,344.66
  4. Step 4: Simplify right side
    79,152.48x = 4,734,554,116.22
  5. Step 5: Solve for x
    x = 4,734,554,116.22/79,152.48
  6. Step 6: Final answer
    x = 59,815.61

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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.