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Finding the Fourth Proportional to 192,886.91, 266,177.91 and 106,842.43

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Solution

The fourth proportional to 192,886.91, 266,177.91 and 106,842.43 is: 147,439.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,886.91 : 266,177.91 = 106,842.43 : x
  2. Step 2: Convert to fraction form
    192,886.91/266,177.91 = 106,842.43/x
  3. Step 3: Cross multiply
    192,886.91x = 266,177.91 × 106,842.43
  4. Step 4: Simplify right side
    192,886.91x = 28,439,094,716.72
  5. Step 5: Solve for x
    x = 28,439,094,716.72/192,886.91
  6. Step 6: Final answer
    x = 147,439.22

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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.