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Finding the Fourth Proportional to 101,896.20, 152,844.30 and 78,568.20

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Solution

The fourth proportional to 101,896.20, 152,844.30 and 78,568.20 is: 117,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,896.20 : 152,844.30 = 78,568.20 : x
  2. Step 2: Convert to fraction form
    101,896.20/152,844.30 = 78,568.20/x
  3. Step 3: Cross multiply
    101,896.20x = 152,844.30 × 78,568.20
  4. Step 4: Simplify right side
    101,896.20x = 12,008,701,531.26
  5. Step 5: Solve for x
    x = 12,008,701,531.26/101,896.20
  6. Step 6: Final answer
    x = 117,852.30

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1.5x scale

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.