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Finding the Fourth Proportional to 71,694.59, 98,963.15 and 43,400.29

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Solution

The fourth proportional to 71,694.59, 98,963.15 and 43,400.29 is: 59,907.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,694.59 : 98,963.15 = 43,400.29 : x
  2. Step 2: Convert to fraction form
    71,694.59/98,963.15 = 43,400.29/x
  3. Step 3: Cross multiply
    71,694.59x = 98,963.15 × 43,400.29
  4. Step 4: Simplify right side
    71,694.59x = 4,295,028,697.50
  5. Step 5: Solve for x
    x = 4,295,028,697.50/71,694.59
  6. Step 6: Final answer
    x = 59,907.29

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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.