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Finding the Fourth Proportional to 79,195.47, 109,290.96 and 43,388.88

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Solution

The fourth proportional to 79,195.47, 109,290.96 and 43,388.88 is: 59,877.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,195.47 : 109,290.96 = 43,388.88 : x
  2. Step 2: Convert to fraction form
    79,195.47/109,290.96 = 43,388.88/x
  3. Step 3: Cross multiply
    79,195.47x = 109,290.96 × 43,388.88
  4. Step 4: Simplify right side
    79,195.47x = 4,742,012,348.52
  5. Step 5: Solve for x
    x = 4,742,012,348.52/79,195.47
  6. Step 6: Final answer
    x = 59,877.32

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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.