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Finding the Fourth Proportional to 117,373.36, 161,949.90 and 69,642.50

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Solution

The fourth proportional to 117,373.36, 161,949.90 and 69,642.50 is: 96,091.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,373.36 : 161,949.90 = 69,642.50 : x
  2. Step 2: Convert to fraction form
    117,373.36/161,949.90 = 69,642.50/x
  3. Step 3: Cross multiply
    117,373.36x = 161,949.90 × 69,642.50
  4. Step 4: Simplify right side
    117,373.36x = 11,278,595,910.75
  5. Step 5: Solve for x
    x = 11,278,595,910.75/117,373.36
  6. Step 6: Final answer
    x = 96,091.62

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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.