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Finding the Fourth Proportional to 74,652.57, 103,020.54 and 41,118.57

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Solution

The fourth proportional to 74,652.57, 103,020.54 and 41,118.57 is: 56,743.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,652.57 : 103,020.54 = 41,118.57 : x
  2. Step 2: Convert to fraction form
    74,652.57/103,020.54 = 41,118.57/x
  3. Step 3: Cross multiply
    74,652.57x = 103,020.54 × 41,118.57
  4. Step 4: Simplify right side
    74,652.57x = 4,236,057,285.43
  5. Step 5: Solve for x
    x = 4,236,057,285.43/74,652.57
  6. Step 6: Final answer
    x = 56,743.62

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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.