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Finding the Fourth Proportional to 79,168.62, 109,248.64 and 43,351.71

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Solution

The fourth proportional to 79,168.62, 109,248.64 and 43,351.71 is: 59,823.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,168.62 : 109,248.64 = 43,351.71 : x
  2. Step 2: Convert to fraction form
    79,168.62/109,248.64 = 43,351.71/x
  3. Step 3: Cross multiply
    79,168.62x = 109,248.64 × 43,351.71
  4. Step 4: Simplify right side
    79,168.62x = 4,736,115,359.17
  5. Step 5: Solve for x
    x = 4,736,115,359.17/79,168.62
  6. Step 6: Final answer
    x = 59,823.14

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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.