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Finding the Fourth Proportional to 65,220.66, 98,275.24 and 53,633.96

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Solution

The fourth proportional to 65,220.66, 98,275.24 and 53,633.96 is: 80,816.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,220.66 : 98,275.24 = 53,633.96 : x
  2. Step 2: Convert to fraction form
    65,220.66/98,275.24 = 53,633.96/x
  3. Step 3: Cross multiply
    65,220.66x = 98,275.24 × 53,633.96
  4. Step 4: Simplify right side
    65,220.66x = 5,270,890,291.15
  5. Step 5: Solve for x
    x = 5,270,890,291.15/65,220.66
  6. Step 6: Final answer
    x = 80,816.27

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.