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Finding the Fourth Proportional to 171,751.33, 236,997.12 and 99,153.93

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Solution

The fourth proportional to 171,751.33, 236,997.12 and 99,153.93 is: 136,821.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,751.33 : 236,997.12 = 99,153.93 : x
  2. Step 2: Convert to fraction form
    171,751.33/236,997.12 = 99,153.93/x
  3. Step 3: Cross multiply
    171,751.33x = 236,997.12 × 99,153.93
  4. Step 4: Simplify right side
    171,751.33x = 23,499,195,846.68
  5. Step 5: Solve for x
    x = 23,499,195,846.68/171,751.33
  6. Step 6: Final answer
    x = 136,821.04

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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.