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Finding the Fourth Proportional to 111,851.61, 167,777.42 and 92,088.64

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Solution

The fourth proportional to 111,851.61, 167,777.42 and 92,088.64 is: 138,132.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,851.61 : 167,777.42 = 92,088.64 : x
  2. Step 2: Convert to fraction form
    111,851.61/167,777.42 = 92,088.64/x
  3. Step 3: Cross multiply
    111,851.61x = 167,777.42 × 92,088.64
  4. Step 4: Simplify right side
    111,851.61x = 15,450,394,179.79
  5. Step 5: Solve for x
    x = 15,450,394,179.79/111,851.61
  6. Step 6: Final answer
    x = 138,132.97

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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.