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Finding the Fourth Proportional to 399,562.04, 599,348.25 and 133,322.56

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Solution

The fourth proportional to 399,562.04, 599,348.25 and 133,322.56 is: 199,985.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,562.04 : 599,348.25 = 133,322.56 : x
  2. Step 2: Convert to fraction form
    399,562.04/599,348.25 = 133,322.56/x
  3. Step 3: Cross multiply
    399,562.04x = 599,348.25 × 133,322.56
  4. Step 4: Simplify right side
    399,562.04x = 79,906,640,024.78
  5. Step 5: Solve for x
    x = 79,906,640,024.78/399,562.04
  6. Step 6: Final answer
    x = 199,985.56

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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.