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Finding the Fourth Proportional to 231,745.20, 347,650.20 and 98,624.40

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Solution

The fourth proportional to 231,745.20, 347,650.20 and 98,624.40 is: 147,950.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,745.20 : 347,650.20 = 98,624.40 : x
  2. Step 2: Convert to fraction form
    231,745.20/347,650.20 = 98,624.40/x
  3. Step 3: Cross multiply
    231,745.20x = 347,650.20 × 98,624.40
  4. Step 4: Simplify right side
    231,745.20x = 34,286,792,384.88
  5. Step 5: Solve for x
    x = 34,286,792,384.88/231,745.20
  6. Step 6: Final answer
    x = 147,950.39

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1.5x scale

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.