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Finding the Fourth Proportional to 74,760.56, 103,169 and 41,226.56

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Solution

The fourth proportional to 74,760.56, 103,169 and 41,226.56 is: 56,892.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,760.56 : 103,169 = 41,226.56 : x
  2. Step 2: Convert to fraction form
    74,760.56/103,169 = 41,226.56/x
  3. Step 3: Cross multiply
    74,760.56x = 103,169 × 41,226.56
  4. Step 4: Simplify right side
    74,760.56x = 4,253,302,968.64
  5. Step 5: Solve for x
    x = 4,253,302,968.64/74,760.56
  6. Step 6: Final answer
    x = 56,892.34

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1.5x scale

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.