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Finding the Fourth Proportional to 192,016.76, 287,935.97 and 112,077.80

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Solution

The fourth proportional to 192,016.76, 287,935.97 and 112,077.80 is: 168,064.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,016.76 : 287,935.97 = 112,077.80 : x
  2. Step 2: Convert to fraction form
    192,016.76/287,935.97 = 112,077.80/x
  3. Step 3: Cross multiply
    192,016.76x = 287,935.97 × 112,077.80
  4. Step 4: Simplify right side
    192,016.76x = 32,271,231,058.50
  5. Step 5: Solve for x
    x = 32,271,231,058.50/192,016.76
  6. Step 6: Final answer
    x = 168,064.66

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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.