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Finding the Fourth Proportional to 171,658.62, 236,971.80 and 114,393.24

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Solution

The fourth proportional to 171,658.62, 236,971.80 and 114,393.24 is: 157,917.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,658.62 : 236,971.80 = 114,393.24 : x
  2. Step 2: Convert to fraction form
    171,658.62/236,971.80 = 114,393.24/x
  3. Step 3: Cross multiply
    171,658.62x = 236,971.80 × 114,393.24
  4. Step 4: Simplify right side
    171,658.62x = 27,107,971,990.63
  5. Step 5: Solve for x
    x = 27,107,971,990.63/171,658.62
  6. Step 6: Final answer
    x = 157,917.92

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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.