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Finding the Fourth Proportional to 116,698.88, 161,064.62 and 67,633.66

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Solution

The fourth proportional to 116,698.88, 161,064.62 and 67,633.66 is: 93,346.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,698.88 : 161,064.62 = 67,633.66 : x
  2. Step 2: Convert to fraction form
    116,698.88/161,064.62 = 67,633.66/x
  3. Step 3: Cross multiply
    116,698.88x = 161,064.62 × 67,633.66
  4. Step 4: Simplify right side
    116,698.88x = 10,893,389,747.11
  5. Step 5: Solve for x
    x = 10,893,389,747.11/116,698.88
  6. Step 6: Final answer
    x = 93,346.14

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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.