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Finding the Fourth Proportional to 116,563.98, 160,852.42 and 68,808.09

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Solution

The fourth proportional to 116,563.98, 160,852.42 and 68,808.09 is: 94,951.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,563.98 : 160,852.42 = 68,808.09 : x
  2. Step 2: Convert to fraction form
    116,563.98/160,852.42 = 68,808.09/x
  3. Step 3: Cross multiply
    116,563.98x = 160,852.42 × 68,808.09
  4. Step 4: Simplify right side
    116,563.98x = 11,067,947,792.08
  5. Step 5: Solve for x
    x = 11,067,947,792.08/116,563.98
  6. Step 6: Final answer
    x = 94,951.70

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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.