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Finding the Fourth Proportional to 192,787.86, 265,996.80 and 111,096.12

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Solution

The fourth proportional to 192,787.86, 265,996.80 and 111,096.12 is: 153,283.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,787.86 : 265,996.80 = 111,096.12 : x
  2. Step 2: Convert to fraction form
    192,787.86/265,996.80 = 111,096.12/x
  3. Step 3: Cross multiply
    192,787.86x = 265,996.80 × 111,096.12
  4. Step 4: Simplify right side
    192,787.86x = 29,551,212,412.42
  5. Step 5: Solve for x
    x = 29,551,212,412.42/192,787.86
  6. Step 6: Final answer
    x = 153,283.58

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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.