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Finding the Fourth Proportional to 168,761.93, 232,936.16 and 105,061.91

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Solution

The fourth proportional to 168,761.93, 232,936.16 and 105,061.91 is: 145,013.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,761.93 : 232,936.16 = 105,061.91 : x
  2. Step 2: Convert to fraction form
    168,761.93/232,936.16 = 105,061.91/x
  3. Step 3: Cross multiply
    168,761.93x = 232,936.16 × 105,061.91
  4. Step 4: Simplify right side
    168,761.93x = 24,472,716,187.68
  5. Step 5: Solve for x
    x = 24,472,716,187.68/168,761.93
  6. Step 6: Final answer
    x = 145,013.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.