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Finding the Fourth Proportional to 55,974.70, 84,007.95 and 55,537.30

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Solution

The fourth proportional to 55,974.70, 84,007.95 and 55,537.30 is: 83,351.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,974.70 : 84,007.95 = 55,537.30 : x
  2. Step 2: Convert to fraction form
    55,974.70/84,007.95 = 55,537.30/x
  3. Step 3: Cross multiply
    55,974.70x = 84,007.95 × 55,537.30
  4. Step 4: Simplify right side
    55,974.70x = 4,665,574,721.54
  5. Step 5: Solve for x
    x = 4,665,574,721.54/55,974.70
  6. Step 6: Final answer
    x = 83,351.49

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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.