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Finding the Fourth Proportional to 65,498.31, 90,422.07 and 44,100.57

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Solution

The fourth proportional to 65,498.31, 90,422.07 and 44,100.57 is: 60,881.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,498.31 : 90,422.07 = 44,100.57 : x
  2. Step 2: Convert to fraction form
    65,498.31/90,422.07 = 44,100.57/x
  3. Step 3: Cross multiply
    65,498.31x = 90,422.07 × 44,100.57
  4. Step 4: Simplify right side
    65,498.31x = 3,987,664,827.58
  5. Step 5: Solve for x
    x = 3,987,664,827.58/65,498.31
  6. Step 6: Final answer
    x = 60,881.95

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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.