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Finding the Fourth Proportional to 121,168.58, 167,212.49 and 67,458.29

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Solution

The fourth proportional to 121,168.58, 167,212.49 and 67,458.29 is: 93,092.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,168.58 : 167,212.49 = 67,458.29 : x
  2. Step 2: Convert to fraction form
    121,168.58/167,212.49 = 67,458.29/x
  3. Step 3: Cross multiply
    121,168.58x = 167,212.49 × 67,458.29
  4. Step 4: Simplify right side
    121,168.58x = 11,279,867,468.69
  5. Step 5: Solve for x
    x = 11,279,867,468.69/121,168.58
  6. Step 6: Final answer
    x = 93,092.35

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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.