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Finding the Fourth Proportional to 68,552.10, 102,791.70 and 29,064.60

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Solution

The fourth proportional to 68,552.10, 102,791.70 and 29,064.60 is: 43,581.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,552.10 : 102,791.70 = 29,064.60 : x
  2. Step 2: Convert to fraction form
    68,552.10/102,791.70 = 29,064.60/x
  3. Step 3: Cross multiply
    68,552.10x = 102,791.70 × 29,064.60
  4. Step 4: Simplify right side
    68,552.10x = 2,987,599,643.82
  5. Step 5: Solve for x
    x = 2,987,599,643.82/68,552.10
  6. Step 6: Final answer
    x = 43,581.45

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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.