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Finding the Fourth Proportional to 73,921.01, 110,879.89 and 21,335.00

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Solution

The fourth proportional to 73,921.01, 110,879.89 and 21,335.00 is: 32,002.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,921.01 : 110,879.89 = 21,335.00 : x
  2. Step 2: Convert to fraction form
    73,921.01/110,879.89 = 21,335.00/x
  3. Step 3: Cross multiply
    73,921.01x = 110,879.89 × 21,335.00
  4. Step 4: Simplify right side
    73,921.01x = 2,365,621,845.41
  5. Step 5: Solve for x
    x = 2,365,621,845.41/73,921.01
  6. Step 6: Final answer
    x = 32,002.02

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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.