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Finding the Fourth Proportional to 251,884.68, 347,496.54 and 149,889.72

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Solution

The fourth proportional to 251,884.68, 347,496.54 and 149,889.72 is: 206,785.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,884.68 : 347,496.54 = 149,889.72 : x
  2. Step 2: Convert to fraction form
    251,884.68/347,496.54 = 149,889.72/x
  3. Step 3: Cross multiply
    251,884.68x = 347,496.54 × 149,889.72
  4. Step 4: Simplify right side
    251,884.68x = 52,086,159,081.57
  5. Step 5: Solve for x
    x = 52,086,159,081.57/251,884.68
  6. Step 6: Final answer
    x = 206,785.74

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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.