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Finding the Fourth Proportional to 100,896.20, 151,344.30 and 65,466.80

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Solution

The fourth proportional to 100,896.20, 151,344.30 and 65,466.80 is: 98,200.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,896.20 : 151,344.30 = 65,466.80 : x
  2. Step 2: Convert to fraction form
    100,896.20/151,344.30 = 65,466.80/x
  3. Step 3: Cross multiply
    100,896.20x = 151,344.30 × 65,466.80
  4. Step 4: Simplify right side
    100,896.20x = 9,908,027,019.24
  5. Step 5: Solve for x
    x = 9,908,027,019.24/100,896.20
  6. Step 6: Final answer
    x = 98,200.20

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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.