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Finding the Fourth Proportional to 68,230.32, 102,220.79 and 49,463.81

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Solution

The fourth proportional to 68,230.32, 102,220.79 and 49,463.81 is: 74,105.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,230.32 : 102,220.79 = 49,463.81 : x
  2. Step 2: Convert to fraction form
    68,230.32/102,220.79 = 49,463.81/x
  3. Step 3: Cross multiply
    68,230.32x = 102,220.79 × 49,463.81
  4. Step 4: Simplify right side
    68,230.32x = 5,056,228,976.19
  5. Step 5: Solve for x
    x = 5,056,228,976.19/68,230.32
  6. Step 6: Final answer
    x = 74,105.31

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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.