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Finding the Fourth Proportional to 101,821.52, 152,792.76 and 55,073.36

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Solution

The fourth proportional to 101,821.52, 152,792.76 and 55,073.36 is: 82,642.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,821.52 : 152,792.76 = 55,073.36 : x
  2. Step 2: Convert to fraction form
    101,821.52/152,792.76 = 55,073.36/x
  3. Step 3: Cross multiply
    101,821.52x = 152,792.76 × 55,073.36
  4. Step 4: Simplify right side
    101,821.52x = 8,414,810,676.87
  5. Step 5: Solve for x
    x = 8,414,810,676.87/101,821.52
  6. Step 6: Final answer
    x = 82,642.75

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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.