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Finding the Fourth Proportional to 64,461.78, 88,965.39 and 36,167.28

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Solution

The fourth proportional to 64,461.78, 88,965.39 and 36,167.28 is: 49,915.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,461.78 : 88,965.39 = 36,167.28 : x
  2. Step 2: Convert to fraction form
    64,461.78/88,965.39 = 36,167.28/x
  3. Step 3: Cross multiply
    64,461.78x = 88,965.39 × 36,167.28
  4. Step 4: Simplify right side
    64,461.78x = 3,217,636,170.44
  5. Step 5: Solve for x
    x = 3,217,636,170.44/64,461.78
  6. Step 6: Final answer
    x = 49,915.41

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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.