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Finding the Fourth Proportional to 193,389.97, 266,873.93 and 107,343.89

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Solution

The fourth proportional to 193,389.97, 266,873.93 and 107,343.89 is: 148,132.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,389.97 : 266,873.93 = 107,343.89 : x
  2. Step 2: Convert to fraction form
    193,389.97/266,873.93 = 107,343.89/x
  3. Step 3: Cross multiply
    193,389.97x = 266,873.93 × 107,343.89
  4. Step 4: Simplify right side
    193,389.97x = 28,647,285,785.79
  5. Step 5: Solve for x
    x = 28,647,285,785.79/193,389.97
  6. Step 6: Final answer
    x = 148,132.22

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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.