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Finding the Fourth Proportional to 121,098.30, 167,115.63 and 67,383.30

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Solution

The fourth proportional to 121,098.30, 167,115.63 and 67,383.30 is: 92,988.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,098.30 : 167,115.63 = 67,383.30 : x
  2. Step 2: Convert to fraction form
    121,098.30/167,115.63 = 67,383.30/x
  3. Step 3: Cross multiply
    121,098.30x = 167,115.63 × 67,383.30
  4. Step 4: Simplify right side
    121,098.30x = 11,260,802,630.98
  5. Step 5: Solve for x
    x = 11,260,802,630.98/121,098.30
  6. Step 6: Final answer
    x = 92,988.94

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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.