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Finding the Fourth Proportional to 110,813.29, 166,281.29 and 68,715.97

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Solution

The fourth proportional to 110,813.29, 166,281.29 and 68,715.97 is: 103,112.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,813.29 : 166,281.29 = 68,715.97 : x
  2. Step 2: Convert to fraction form
    110,813.29/166,281.29 = 68,715.97/x
  3. Step 3: Cross multiply
    110,813.29x = 166,281.29 × 68,715.97
  4. Step 4: Simplify right side
    110,813.29x = 11,426,180,135.20
  5. Step 5: Solve for x
    x = 11,426,180,135.20/110,813.29
  6. Step 6: Final answer
    x = 103,112.00

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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.