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Finding the Fourth Proportional to 192,691.80, 265,968.18 and 112,134.96

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Solution

The fourth proportional to 192,691.80, 265,968.18 and 112,134.96 is: 154,777.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,691.80 : 265,968.18 = 112,134.96 : x
  2. Step 2: Convert to fraction form
    192,691.80/265,968.18 = 112,134.96/x
  3. Step 3: Cross multiply
    192,691.80x = 265,968.18 × 112,134.96
  4. Step 4: Simplify right side
    192,691.80x = 29,824,331,225.57
  5. Step 5: Solve for x
    x = 29,824,331,225.57/192,691.80
  6. Step 6: Final answer
    x = 154,777.38

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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.