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Finding the Fourth Proportional to 84,952.80, 117,226.44 and 64,822.68

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Solution

The fourth proportional to 84,952.80, 117,226.44 and 64,822.68 is: 89,448.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,952.80 : 117,226.44 = 64,822.68 : x
  2. Step 2: Convert to fraction form
    84,952.80/117,226.44 = 64,822.68/x
  3. Step 3: Cross multiply
    84,952.80x = 117,226.44 × 64,822.68
  4. Step 4: Simplify right side
    84,952.80x = 7,598,932,007.66
  5. Step 5: Solve for x
    x = 7,598,932,007.66/84,952.80
  6. Step 6: Final answer
    x = 89,448.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.