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Finding the Fourth Proportional to 68,687.70, 103,071.24 and 37,098.36

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Solution

The fourth proportional to 68,687.70, 103,071.24 and 37,098.36 is: 55,668.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,687.70 : 103,071.24 = 37,098.36 : x
  2. Step 2: Convert to fraction form
    68,687.70/103,071.24 = 37,098.36/x
  3. Step 3: Cross multiply
    68,687.70x = 103,071.24 × 37,098.36
  4. Step 4: Simplify right side
    68,687.70x = 3,823,773,967.17
  5. Step 5: Solve for x
    x = 3,823,773,967.17/68,687.70
  6. Step 6: Final answer
    x = 55,668.98

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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.