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Finding the Fourth Proportional to 101,515.44, 152,272.68 and 67,710

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Solution

The fourth proportional to 101,515.44, 152,272.68 and 67,710 is: 101,564.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,515.44 : 152,272.68 = 67,710 : x
  2. Step 2: Convert to fraction form
    101,515.44/152,272.68 = 67,710/x
  3. Step 3: Cross multiply
    101,515.44x = 152,272.68 × 67,710
  4. Step 4: Simplify right side
    101,515.44x = 10,310,383,162.80
  5. Step 5: Solve for x
    x = 10,310,383,162.80/101,515.44
  6. Step 6: Final answer
    x = 101,564.68

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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.