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Finding the Fourth Proportional to 73,252.85, 110,428.31 and 68,370.32

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Solution

The fourth proportional to 73,252.85, 110,428.31 and 68,370.32 is: 103,067.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,252.85 : 110,428.31 = 68,370.32 : x
  2. Step 2: Convert to fraction form
    73,252.85/110,428.31 = 68,370.32/x
  3. Step 3: Cross multiply
    73,252.85x = 110,428.31 × 68,370.32
  4. Step 4: Simplify right side
    73,252.85x = 7,550,017,997.77
  5. Step 5: Solve for x
    x = 7,550,017,997.77/73,252.85
  6. Step 6: Final answer
    x = 103,067.91

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.