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Finding the Fourth Proportional to 67,393.83, 101,090.76 and 31,858.73

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Solution

The fourth proportional to 67,393.83, 101,090.76 and 31,858.73 is: 47,788.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,393.83 : 101,090.76 = 31,858.73 : x
  2. Step 2: Convert to fraction form
    67,393.83/101,090.76 = 31,858.73/x
  3. Step 3: Cross multiply
    67,393.83x = 101,090.76 × 31,858.73
  4. Step 4: Simplify right side
    67,393.83x = 3,220,623,228.33
  5. Step 5: Solve for x
    x = 3,220,623,228.33/67,393.83
  6. Step 6: Final answer
    x = 47,788.10

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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.