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Finding the Fourth Proportional to 79,247.61, 109,364.42 and 43,437.62

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Solution

The fourth proportional to 79,247.61, 109,364.42 and 43,437.62 is: 59,945.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,247.61 : 109,364.42 = 43,437.62 : x
  2. Step 2: Convert to fraction form
    79,247.61/109,364.42 = 43,437.62/x
  3. Step 3: Cross multiply
    79,247.61x = 109,364.42 × 43,437.62
  4. Step 4: Simplify right side
    79,247.61x = 4,750,530,499.49
  5. Step 5: Solve for x
    x = 4,750,530,499.49/79,247.61
  6. Step 6: Final answer
    x = 59,945.41

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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.