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Finding the Fourth Proportional to 69,081.64, 95,261.34 and 65,062.60

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Solution

The fourth proportional to 69,081.64, 95,261.34 and 65,062.60 is: 89,719.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,081.64 : 95,261.34 = 65,062.60 : x
  2. Step 2: Convert to fraction form
    69,081.64/95,261.34 = 65,062.60/x
  3. Step 3: Cross multiply
    69,081.64x = 95,261.34 × 65,062.60
  4. Step 4: Simplify right side
    69,081.64x = 6,197,950,459.88
  5. Step 5: Solve for x
    x = 6,197,950,459.88/69,081.64
  6. Step 6: Final answer
    x = 89,719.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.