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Finding the Fourth Proportional to 192,356.76, 265,406.84 and 111,736.40

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Solution

The fourth proportional to 192,356.76, 265,406.84 and 111,736.40 is: 154,169.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,356.76 : 265,406.84 = 111,736.40 : x
  2. Step 2: Convert to fraction form
    192,356.76/265,406.84 = 111,736.40/x
  3. Step 3: Cross multiply
    192,356.76x = 265,406.84 × 111,736.40
  4. Step 4: Simplify right side
    192,356.76x = 29,655,604,836.98
  5. Step 5: Solve for x
    x = 29,655,604,836.98/192,356.76
  6. Step 6: Final answer
    x = 154,169.81

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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.