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Finding the Fourth Proportional to 113,163.82, 169,744.66 and 68,802.82

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Solution

The fourth proportional to 113,163.82, 169,744.66 and 68,802.82 is: 103,203.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,163.82 : 169,744.66 = 68,802.82 : x
  2. Step 2: Convert to fraction form
    113,163.82/169,744.66 = 68,802.82/x
  3. Step 3: Cross multiply
    113,163.82x = 169,744.66 × 68,802.82
  4. Step 4: Simplify right side
    113,163.82x = 11,678,911,287.94
  5. Step 5: Solve for x
    x = 11,678,911,287.94/113,163.82
  6. Step 6: Final answer
    x = 103,203.58

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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.