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Finding the Fourth Proportional to 65,363.88, 98,083.08 and 54,403.32

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Solution

The fourth proportional to 65,363.88, 98,083.08 and 54,403.32 is: 81,635.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,363.88 : 98,083.08 = 54,403.32 : x
  2. Step 2: Convert to fraction form
    65,363.88/98,083.08 = 54,403.32/x
  3. Step 3: Cross multiply
    65,363.88x = 98,083.08 × 54,403.32
  4. Step 4: Simplify right side
    65,363.88x = 5,336,045,187.83
  5. Step 5: Solve for x
    x = 5,336,045,187.83/65,363.88
  6. Step 6: Final answer
    x = 81,635.99

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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.