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Finding the Fourth Proportional to 251,652.78, 347,101.38 and 154,729.62

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Solution

The fourth proportional to 251,652.78, 347,101.38 and 154,729.62 is: 213,416.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,652.78 : 347,101.38 = 154,729.62 : x
  2. Step 2: Convert to fraction form
    251,652.78/347,101.38 = 154,729.62/x
  3. Step 3: Cross multiply
    251,652.78x = 347,101.38 × 154,729.62
  4. Step 4: Simplify right side
    251,652.78x = 53,706,864,628.88
  5. Step 5: Solve for x
    x = 53,706,864,628.88/251,652.78
  6. Step 6: Final answer
    x = 213,416.54

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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.