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Finding the Fourth Proportional to 92,841.82, 139,136.89 and 67,764.22

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Solution

The fourth proportional to 92,841.82, 139,136.89 and 67,764.22 is: 101,554.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,841.82 : 139,136.89 = 67,764.22 : x
  2. Step 2: Convert to fraction form
    92,841.82/139,136.89 = 67,764.22/x
  3. Step 3: Cross multiply
    92,841.82x = 139,136.89 × 67,764.22
  4. Step 4: Simplify right side
    92,841.82x = 9,428,502,824.08
  5. Step 5: Solve for x
    x = 9,428,502,824.08/92,841.82
  6. Step 6: Final answer
    x = 101,554.48

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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.