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Finding the Fourth Proportional to 74,796.24, 112,193.48 and 21,489.51

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Solution

The fourth proportional to 74,796.24, 112,193.48 and 21,489.51 is: 32,234.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,796.24 : 112,193.48 = 21,489.51 : x
  2. Step 2: Convert to fraction form
    74,796.24/112,193.48 = 21,489.51/x
  3. Step 3: Cross multiply
    74,796.24x = 112,193.48 × 21,489.51
  4. Step 4: Simplify right side
    74,796.24x = 2,410,982,802.95
  5. Step 5: Solve for x
    x = 2,410,982,802.95/74,796.24
  6. Step 6: Final answer
    x = 32,234.01

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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.