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Finding the Fourth Proportional to 64,252.80, 96,331.20 and 33,110.40

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Solution

The fourth proportional to 64,252.80, 96,331.20 and 33,110.40 is: 49,640.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,252.80 : 96,331.20 = 33,110.40 : x
  2. Step 2: Convert to fraction form
    64,252.80/96,331.20 = 33,110.40/x
  3. Step 3: Cross multiply
    64,252.80x = 96,331.20 × 33,110.40
  4. Step 4: Simplify right side
    64,252.80x = 3,189,564,564.48
  5. Step 5: Solve for x
    x = 3,189,564,564.48/64,252.80
  6. Step 6: Final answer
    x = 49,640.86

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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.