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Finding the Fourth Proportional to 106,411.96, 159,616.98 and 40,747.96

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Solution

The fourth proportional to 106,411.96, 159,616.98 and 40,747.96 is: 61,121.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,411.96 : 159,616.98 = 40,747.96 : x
  2. Step 2: Convert to fraction form
    106,411.96/159,616.98 = 40,747.96/x
  3. Step 3: Cross multiply
    106,411.96x = 159,616.98 × 40,747.96
  4. Step 4: Simplify right side
    106,411.96x = 6,504,066,316.36
  5. Step 5: Solve for x
    x = 6,504,066,316.36/106,411.96
  6. Step 6: Final answer
    x = 61,121.57

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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.