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Finding the Fourth Proportional to 121,006.33, 166,964.26 and 70,695.61

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Solution

The fourth proportional to 121,006.33, 166,964.26 and 70,695.61 is: 97,545.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,006.33 : 166,964.26 = 70,695.61 : x
  2. Step 2: Convert to fraction form
    121,006.33/166,964.26 = 70,695.61/x
  3. Step 3: Cross multiply
    121,006.33x = 166,964.26 × 70,695.61
  4. Step 4: Simplify right side
    121,006.33x = 11,803,640,208.90
  5. Step 5: Solve for x
    x = 11,803,640,208.90/121,006.33
  6. Step 6: Final answer
    x = 97,545.64

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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.