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Finding the Fourth Proportional to 71,694.59, 98,963.14 and 43,400.28

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Solution

The fourth proportional to 71,694.59, 98,963.14 and 43,400.28 is: 59,907.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,694.59 : 98,963.14 = 43,400.28 : x
  2. Step 2: Convert to fraction form
    71,694.59/98,963.14 = 43,400.28/x
  3. Step 3: Cross multiply
    71,694.59x = 98,963.14 × 43,400.28
  4. Step 4: Simplify right side
    71,694.59x = 4,295,027,985.68
  5. Step 5: Solve for x
    x = 4,295,027,985.68/71,694.59
  6. Step 6: Final answer
    x = 59,907.28

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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.