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Finding the Fourth Proportional to 141,638.88, 212,458.84 and 52,891.44

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Solution

The fourth proportional to 141,638.88, 212,458.84 and 52,891.44 is: 79,337.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,638.88 : 212,458.84 = 52,891.44 : x
  2. Step 2: Convert to fraction form
    141,638.88/212,458.84 = 52,891.44/x
  3. Step 3: Cross multiply
    141,638.88x = 212,458.84 × 52,891.44
  4. Step 4: Simplify right side
    141,638.88x = 11,237,253,988.33
  5. Step 5: Solve for x
    x = 11,237,253,988.33/141,638.88
  6. Step 6: Final answer
    x = 79,337.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.