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Finding the Fourth Proportional to 63,198.78, 87,213.27 and 34,903.74

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Solution

The fourth proportional to 63,198.78, 87,213.27 and 34,903.74 is: 48,166.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,198.78 : 87,213.27 = 34,903.74 : x
  2. Step 2: Convert to fraction form
    63,198.78/87,213.27 = 34,903.74/x
  3. Step 3: Cross multiply
    63,198.78x = 87,213.27 × 34,903.74
  4. Step 4: Simplify right side
    63,198.78x = 3,044,069,300.63
  5. Step 5: Solve for x
    x = 3,044,069,300.63/63,198.78
  6. Step 6: Final answer
    x = 48,166.58

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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.