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Finding the Fourth Proportional to 116,663.22, 160,986.02 and 68,907.65

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Solution

The fourth proportional to 116,663.22, 160,986.02 and 68,907.65 is: 95,087.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,663.22 : 160,986.02 = 68,907.65 : x
  2. Step 2: Convert to fraction form
    116,663.22/160,986.02 = 68,907.65/x
  3. Step 3: Cross multiply
    116,663.22x = 160,986.02 × 68,907.65
  4. Step 4: Simplify right side
    116,663.22x = 11,093,167,171.58
  5. Step 5: Solve for x
    x = 11,093,167,171.58/116,663.22
  6. Step 6: Final answer
    x = 95,087.10

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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.