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Finding the Fourth Proportional to 64,309.86, 96,441.10 and 22,179.13

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Solution

The fourth proportional to 64,309.86, 96,441.10 and 22,179.13 is: 33,260.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,309.86 : 96,441.10 = 22,179.13 : x
  2. Step 2: Convert to fraction form
    64,309.86/96,441.10 = 22,179.13/x
  3. Step 3: Cross multiply
    64,309.86x = 96,441.10 × 22,179.13
  4. Step 4: Simplify right side
    64,309.86x = 2,138,979,397.69
  5. Step 5: Solve for x
    x = 2,138,979,397.69/64,309.86
  6. Step 6: Final answer
    x = 33,260.52

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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.