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Finding the Fourth Proportional to 361,889.35, 542,571.58 and 243,266.47

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Solution

The fourth proportional to 361,889.35, 542,571.58 and 243,266.47 is: 364,723.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,889.35 : 542,571.58 = 243,266.47 : x
  2. Step 2: Convert to fraction form
    361,889.35/542,571.58 = 243,266.47/x
  3. Step 3: Cross multiply
    361,889.35x = 542,571.58 × 243,266.47
  4. Step 4: Simplify right side
    361,889.35x = 131,989,472,988.92
  5. Step 5: Solve for x
    x = 131,989,472,988.92/361,889.35
  6. Step 6: Final answer
    x = 364,723.29

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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.