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Finding the Fourth Proportional to 65,850.60, 99,006.30 and 64,468.20

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Solution

The fourth proportional to 65,850.60, 99,006.30 and 64,468.20 is: 96,927.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,850.60 : 99,006.30 = 64,468.20 : x
  2. Step 2: Convert to fraction form
    65,850.60/99,006.30 = 64,468.20/x
  3. Step 3: Cross multiply
    65,850.60x = 99,006.30 × 64,468.20
  4. Step 4: Simplify right side
    65,850.60x = 6,382,757,949.66
  5. Step 5: Solve for x
    x = 6,382,757,949.66/65,850.60
  6. Step 6: Final answer
    x = 96,927.86

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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.