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Finding the Fourth Proportional to 492,745.32, 739,249.36 and 155,792.30

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Solution

The fourth proportional to 492,745.32, 739,249.36 and 155,792.30 is: 233,729.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,745.32 : 739,249.36 = 155,792.30 : x
  2. Step 2: Convert to fraction form
    492,745.32/739,249.36 = 155,792.30/x
  3. Step 3: Cross multiply
    492,745.32x = 739,249.36 × 155,792.30
  4. Step 4: Simplify right side
    492,745.32x = 115,169,353,982.20
  5. Step 5: Solve for x
    x = 115,169,353,982.20/492,745.32
  6. Step 6: Final answer
    x = 233,729.98

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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.