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Finding the Fourth Proportional to 97,371.87, 134,379.45 and 54,929.49

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Solution

The fourth proportional to 97,371.87, 134,379.45 and 54,929.49 is: 75,806.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,371.87 : 134,379.45 = 54,929.49 : x
  2. Step 2: Convert to fraction form
    97,371.87/134,379.45 = 54,929.49/x
  3. Step 3: Cross multiply
    97,371.87x = 134,379.45 × 54,929.49
  4. Step 4: Simplify right side
    97,371.87x = 7,381,394,654.98
  5. Step 5: Solve for x
    x = 7,381,394,654.98/97,371.87
  6. Step 6: Final answer
    x = 75,806.23

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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.