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Finding the Fourth Proportional to 65,218.66, 98,272.22 and 53,631.96

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Solution

The fourth proportional to 65,218.66, 98,272.22 and 53,631.96 is: 80,813.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,218.66 : 98,272.22 = 53,631.96 : x
  2. Step 2: Convert to fraction form
    65,218.66/98,272.22 = 53,631.96/x
  3. Step 3: Cross multiply
    65,218.66x = 98,272.22 × 53,631.96
  4. Step 4: Simplify right side
    65,218.66x = 5,270,531,738.61
  5. Step 5: Solve for x
    x = 5,270,531,738.61/65,218.66
  6. Step 6: Final answer
    x = 80,813.25

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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.