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Finding the Fourth Proportional to 150,537.72, 225,821.70 and 39,729.72

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Solution

The fourth proportional to 150,537.72, 225,821.70 and 39,729.72 is: 59,598.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,537.72 : 225,821.70 = 39,729.72 : x
  2. Step 2: Convert to fraction form
    150,537.72/225,821.70 = 39,729.72/x
  3. Step 3: Cross multiply
    150,537.72x = 225,821.70 × 39,729.72
  4. Step 4: Simplify right side
    150,537.72x = 8,971,832,910.92
  5. Step 5: Solve for x
    x = 8,971,832,910.92/150,537.72
  6. Step 6: Final answer
    x = 59,598.57

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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.