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Finding the Fourth Proportional to 541,391.85, 812,200.77 and 162,297.27

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Solution

The fourth proportional to 541,391.85, 812,200.77 and 162,297.27 is: 243,479.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,391.85 : 812,200.77 = 162,297.27 : x
  2. Step 2: Convert to fraction form
    541,391.85/812,200.77 = 162,297.27/x
  3. Step 3: Cross multiply
    541,391.85x = 812,200.77 × 162,297.27
  4. Step 4: Simplify right side
    541,391.85x = 131,817,967,662.90
  5. Step 5: Solve for x
    x = 131,817,967,662.90/541,391.85
  6. Step 6: Final answer
    x = 243,479.78

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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.