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Finding the Fourth Proportional to 121,333.96, 167,454.42 and 67,623.88

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Solution

The fourth proportional to 121,333.96, 167,454.42 and 67,623.88 is: 93,328.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,333.96 : 167,454.42 = 67,623.88 : x
  2. Step 2: Convert to fraction form
    121,333.96/167,454.42 = 67,623.88/x
  3. Step 3: Cross multiply
    121,333.96x = 167,454.42 × 67,623.88
  4. Step 4: Simplify right side
    121,333.96x = 11,323,917,603.55
  5. Step 5: Solve for x
    x = 11,323,917,603.55/121,333.96
  6. Step 6: Final answer
    x = 93,328.51

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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.