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Finding the Fourth Proportional to 251,334.20, 346,786.13 and 149,393.54

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Solution

The fourth proportional to 251,334.20, 346,786.13 and 149,393.54 is: 206,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,334.20 : 346,786.13 = 149,393.54 : x
  2. Step 2: Convert to fraction form
    251,334.20/346,786.13 = 149,393.54/x
  3. Step 3: Cross multiply
    251,334.20x = 346,786.13 × 149,393.54
  4. Step 4: Simplify right side
    251,334.20x = 51,807,605,102.70
  5. Step 5: Solve for x
    x = 51,807,605,102.70/251,334.20
  6. Step 6: Final answer
    x = 206,130.35

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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.