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Finding the Fourth Proportional to 193,356.98, 266,828.61 and 107,310.97

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Solution

The fourth proportional to 193,356.98, 266,828.61 and 107,310.97 is: 148,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,356.98 : 266,828.61 = 107,310.97 : x
  2. Step 2: Convert to fraction form
    193,356.98/266,828.61 = 107,310.97/x
  3. Step 3: Cross multiply
    193,356.98x = 266,828.61 × 107,310.97
  4. Step 4: Simplify right side
    193,356.98x = 28,633,635,628.71
  5. Step 5: Solve for x
    x = 28,633,635,628.71/193,356.98
  6. Step 6: Final answer
    x = 148,086.90

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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.