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Finding the Fourth Proportional to 73,220.88, 101,043.72 and 41,388.66

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Solution

The fourth proportional to 73,220.88, 101,043.72 and 41,388.66 is: 57,115.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,220.88 : 101,043.72 = 41,388.66 : x
  2. Step 2: Convert to fraction form
    73,220.88/101,043.72 = 41,388.66/x
  3. Step 3: Cross multiply
    73,220.88x = 101,043.72 × 41,388.66
  4. Step 4: Simplify right side
    73,220.88x = 4,182,064,172.22
  5. Step 5: Solve for x
    x = 4,182,064,172.22/73,220.88
  6. Step 6: Final answer
    x = 57,115.73

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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.