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Finding the Fourth Proportional to 86,893.66, 119,915.10 and 49,167.91

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Solution

The fourth proportional to 86,893.66, 119,915.10 and 49,167.91 is: 67,852.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,893.66 : 119,915.10 = 49,167.91 : x
  2. Step 2: Convert to fraction form
    86,893.66/119,915.10 = 49,167.91/x
  3. Step 3: Cross multiply
    86,893.66x = 119,915.10 × 49,167.91
  4. Step 4: Simplify right side
    86,893.66x = 5,895,974,844.44
  5. Step 5: Solve for x
    x = 5,895,974,844.44/86,893.66
  6. Step 6: Final answer
    x = 67,852.76

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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.