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Finding the Fourth Proportional to 117,965.36, 162,791.36 and 64,250.21

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Solution

The fourth proportional to 117,965.36, 162,791.36 and 64,250.21 is: 88,664.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,965.36 : 162,791.36 = 64,250.21 : x
  2. Step 2: Convert to fraction form
    117,965.36/162,791.36 = 64,250.21/x
  3. Step 3: Cross multiply
    117,965.36x = 162,791.36 × 64,250.21
  4. Step 4: Simplify right side
    117,965.36x = 10,459,379,066.19
  5. Step 5: Solve for x
    x = 10,459,379,066.19/117,965.36
  6. Step 6: Final answer
    x = 88,664.83

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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.