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Finding the Fourth Proportional to 65,813.34, 98,722.71 and 54,797.70

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Solution

The fourth proportional to 65,813.34, 98,722.71 and 54,797.70 is: 82,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,813.34 : 98,722.71 = 54,797.70 : x
  2. Step 2: Convert to fraction form
    65,813.34/98,722.71 = 54,797.70/x
  3. Step 3: Cross multiply
    65,813.34x = 98,722.71 × 54,797.70
  4. Step 4: Simplify right side
    65,813.34x = 5,409,777,445.77
  5. Step 5: Solve for x
    x = 5,409,777,445.77/65,813.34
  6. Step 6: Final answer
    x = 82,198.80

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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.