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Finding the Fourth Proportional to 121,566.94, 167,770.83 and 67,862.44

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Solution

The fourth proportional to 121,566.94, 167,770.83 and 67,862.44 is: 93,654.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,566.94 : 167,770.83 = 67,862.44 : x
  2. Step 2: Convert to fraction form
    121,566.94/167,770.83 = 67,862.44/x
  3. Step 3: Cross multiply
    121,566.94x = 167,770.83 × 67,862.44
  4. Step 4: Simplify right side
    121,566.94x = 11,385,337,884.63
  5. Step 5: Solve for x
    x = 11,385,337,884.63/121,566.94
  6. Step 6: Final answer
    x = 93,654.89

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1.5x scale

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.