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Finding the Fourth Proportional to 68,206.68, 94,123.80 and 37,991.94

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Solution

The fourth proportional to 68,206.68, 94,123.80 and 37,991.94 is: 52,428.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,206.68 : 94,123.80 = 37,991.94 : x
  2. Step 2: Convert to fraction form
    68,206.68/94,123.80 = 37,991.94/x
  3. Step 3: Cross multiply
    68,206.68x = 94,123.80 × 37,991.94
  4. Step 4: Simplify right side
    68,206.68x = 3,575,945,762.17
  5. Step 5: Solve for x
    x = 3,575,945,762.17/68,206.68
  6. Step 6: Final answer
    x = 52,428.09

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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.