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Finding the Fourth Proportional to 150,531, 225,811.62 and 39,723

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Solution

The fourth proportional to 150,531, 225,811.62 and 39,723 is: 59,588.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,531 : 225,811.62 = 39,723 : x
  2. Step 2: Convert to fraction form
    150,531/225,811.62 = 39,723/x
  3. Step 3: Cross multiply
    150,531x = 225,811.62 × 39,723
  4. Step 4: Simplify right side
    150,531x = 8,969,914,981.26
  5. Step 5: Solve for x
    x = 8,969,914,981.26/150,531
  6. Step 6: Final answer
    x = 59,588.49

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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.