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Finding the Fourth Proportional to 64,606.67, 96,910.41 and 20,230.01

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Solution

The fourth proportional to 64,606.67, 96,910.41 and 20,230.01 is: 30,345.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,606.67 : 96,910.41 = 20,230.01 : x
  2. Step 2: Convert to fraction form
    64,606.67/96,910.41 = 20,230.01/x
  3. Step 3: Cross multiply
    64,606.67x = 96,910.41 × 20,230.01
  4. Step 4: Simplify right side
    64,606.67x = 1,960,498,563.40
  5. Step 5: Solve for x
    x = 1,960,498,563.40/64,606.67
  6. Step 6: Final answer
    x = 30,345.14

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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.