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Finding the Fourth Proportional to 167,383.86, 230,988.33 and 90,904.95

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Solution

The fourth proportional to 167,383.86, 230,988.33 and 90,904.95 is: 125,448.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,383.86 : 230,988.33 = 90,904.95 : x
  2. Step 2: Convert to fraction form
    167,383.86/230,988.33 = 90,904.95/x
  3. Step 3: Cross multiply
    167,383.86x = 230,988.33 × 90,904.95
  4. Step 4: Simplify right side
    167,383.86x = 20,997,982,589.23
  5. Step 5: Solve for x
    x = 20,997,982,589.23/167,383.86
  6. Step 6: Final answer
    x = 125,448.07

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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.