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Finding the Fourth Proportional to 79,335.36, 118,844.28 and 47,727.90

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Solution

The fourth proportional to 79,335.36, 118,844.28 and 47,727.90 is: 71,496.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,335.36 : 118,844.28 = 47,727.90 : x
  2. Step 2: Convert to fraction form
    79,335.36/118,844.28 = 47,727.90/x
  3. Step 3: Cross multiply
    79,335.36x = 118,844.28 × 47,727.90
  4. Step 4: Simplify right side
    79,335.36x = 5,672,187,911.41
  5. Step 5: Solve for x
    x = 5,672,187,911.41/79,335.36
  6. Step 6: Final answer
    x = 71,496.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.