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Finding the Fourth Proportional to 251,676.10, 347,328 and 144,253.09

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Solution

The fourth proportional to 251,676.10, 347,328 and 144,253.09 is: 199,077.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,676.10 : 347,328 = 144,253.09 : x
  2. Step 2: Convert to fraction form
    251,676.10/347,328 = 144,253.09/x
  3. Step 3: Cross multiply
    251,676.10x = 347,328 × 144,253.09
  4. Step 4: Simplify right side
    251,676.10x = 50,103,137,243.52
  5. Step 5: Solve for x
    x = 50,103,137,243.52/251,676.10
  6. Step 6: Final answer
    x = 199,077.85

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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.