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Finding the Fourth Proportional to 68,965.12, 103,464.96 and 22,216.96

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Solution

The fourth proportional to 68,965.12, 103,464.96 and 22,216.96 is: 33,331.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,965.12 : 103,464.96 = 22,216.96 : x
  2. Step 2: Convert to fraction form
    68,965.12/103,464.96 = 22,216.96/x
  3. Step 3: Cross multiply
    68,965.12x = 103,464.96 × 22,216.96
  4. Step 4: Simplify right side
    68,965.12x = 2,298,676,877.72
  5. Step 5: Solve for x
    x = 2,298,676,877.72/68,965.12
  6. Step 6: Final answer
    x = 33,331.01

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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.