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Finding the Fourth Proportional to 79,708.55, 109,996.45 and 43,901.89

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Solution

The fourth proportional to 79,708.55, 109,996.45 and 43,901.89 is: 60,583.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,708.55 : 109,996.45 = 43,901.89 : x
  2. Step 2: Convert to fraction form
    79,708.55/109,996.45 = 43,901.89/x
  3. Step 3: Cross multiply
    79,708.55x = 109,996.45 × 43,901.89
  4. Step 4: Simplify right side
    79,708.55x = 4,829,051,663.54
  5. Step 5: Solve for x
    x = 4,829,051,663.54/79,708.55
  6. Step 6: Final answer
    x = 60,583.86

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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.