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Finding the Fourth Proportional to 251,632.33, 347,138.20 and 149,599.90

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Solution

The fourth proportional to 251,632.33, 347,138.20 and 149,599.90 is: 206,379.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,632.33 : 347,138.20 = 149,599.90 : x
  2. Step 2: Convert to fraction form
    251,632.33/347,138.20 = 149,599.90/x
  3. Step 3: Cross multiply
    251,632.33x = 347,138.20 × 149,599.90
  4. Step 4: Simplify right side
    251,632.33x = 51,931,840,033.75
  5. Step 5: Solve for x
    x = 51,931,840,033.75/251,632.33
  6. Step 6: Final answer
    x = 206,379.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.