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Finding the Fourth Proportional to 61,447.88, 84,811.38 and 36,301.16

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Solution

The fourth proportional to 61,447.88, 84,811.38 and 36,301.16 is: 50,103.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,447.88 : 84,811.38 = 36,301.16 : x
  2. Step 2: Convert to fraction form
    61,447.88/84,811.38 = 36,301.16/x
  3. Step 3: Cross multiply
    61,447.88x = 84,811.38 × 36,301.16
  4. Step 4: Simplify right side
    61,447.88x = 3,078,751,475.20
  5. Step 5: Solve for x
    x = 3,078,751,475.20/61,447.88
  6. Step 6: Final answer
    x = 50,103.46

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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.