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Finding the Fourth Proportional to 84,386.20, 126,593.88 and 34,493.44

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Solution

The fourth proportional to 84,386.20, 126,593.88 and 34,493.44 is: 51,746.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,386.20 : 126,593.88 = 34,493.44 : x
  2. Step 2: Convert to fraction form
    84,386.20/126,593.88 = 34,493.44/x
  3. Step 3: Cross multiply
    84,386.20x = 126,593.88 × 34,493.44
  4. Step 4: Simplify right side
    84,386.20x = 4,366,658,404.15
  5. Step 5: Solve for x
    x = 4,366,658,404.15/84,386.20
  6. Step 6: Final answer
    x = 51,746.12

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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.