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Finding the Fourth Proportional to 64,190.30, 96,103.20 and 60,699.20

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Solution

The fourth proportional to 64,190.30, 96,103.20 and 60,699.20 is: 90,876.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,190.30 : 96,103.20 = 60,699.20 : x
  2. Step 2: Convert to fraction form
    64,190.30/96,103.20 = 60,699.20/x
  3. Step 3: Cross multiply
    64,190.30x = 96,103.20 × 60,699.20
  4. Step 4: Simplify right side
    64,190.30x = 5,833,387,357.44
  5. Step 5: Solve for x
    x = 5,833,387,357.44/64,190.30
  6. Step 6: Final answer
    x = 90,876.46

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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.