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Finding the Fourth Proportional to 121,653.96, 167,870.48 and 67,937.83

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Solution

The fourth proportional to 121,653.96, 167,870.48 and 67,937.83 is: 93,747.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,653.96 : 167,870.48 = 67,937.83 : x
  2. Step 2: Convert to fraction form
    121,653.96/167,870.48 = 67,937.83/x
  3. Step 3: Cross multiply
    121,653.96x = 167,870.48 × 67,937.83
  4. Step 4: Simplify right side
    121,653.96x = 11,404,755,136.83
  5. Step 5: Solve for x
    x = 11,404,755,136.83/121,653.96
  6. Step 6: Final answer
    x = 93,747.50

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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.