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Finding the Fourth Proportional to 238,481.44, 357,455.72 and 103,389.56

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Solution

The fourth proportional to 238,481.44, 357,455.72 and 103,389.56 is: 154,968.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,481.44 : 357,455.72 = 103,389.56 : x
  2. Step 2: Convert to fraction form
    238,481.44/357,455.72 = 103,389.56/x
  3. Step 3: Cross multiply
    238,481.44x = 357,455.72 × 103,389.56
  4. Step 4: Simplify right side
    238,481.44x = 36,957,189,610.28
  5. Step 5: Solve for x
    x = 36,957,189,610.28/238,481.44
  6. Step 6: Final answer
    x = 154,968.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.