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Finding the Fourth Proportional to 65,395.92, 98,079.27 and 30,331.02

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Solution

The fourth proportional to 65,395.92, 98,079.27 and 30,331.02 is: 45,489.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,395.92 : 98,079.27 = 30,331.02 : x
  2. Step 2: Convert to fraction form
    65,395.92/98,079.27 = 30,331.02/x
  3. Step 3: Cross multiply
    65,395.92x = 98,079.27 × 30,331.02
  4. Step 4: Simplify right side
    65,395.92x = 2,974,844,299.96
  5. Step 5: Solve for x
    x = 2,974,844,299.96/65,395.92
  6. Step 6: Final answer
    x = 45,489.75

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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.