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Finding the Fourth Proportional to 71,398.52, 98,528.28 and 41,183.90

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Solution

The fourth proportional to 71,398.52, 98,528.28 and 41,183.90 is: 56,832.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,398.52 : 98,528.28 = 41,183.90 : x
  2. Step 2: Convert to fraction form
    71,398.52/98,528.28 = 41,183.90/x
  3. Step 3: Cross multiply
    71,398.52x = 98,528.28 × 41,183.90
  4. Step 4: Simplify right side
    71,398.52x = 4,057,778,830.69
  5. Step 5: Solve for x
    x = 4,057,778,830.69/71,398.52
  6. Step 6: Final answer
    x = 56,832.81

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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.