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Finding the Fourth Proportional to 121,263.58, 167,336.31 and 67,545.82

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Solution

The fourth proportional to 121,263.58, 167,336.31 and 67,545.82 is: 93,209.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,263.58 : 167,336.31 = 67,545.82 : x
  2. Step 2: Convert to fraction form
    121,263.58/167,336.31 = 67,545.82/x
  3. Step 3: Cross multiply
    121,263.58x = 167,336.31 × 67,545.82
  4. Step 4: Simplify right side
    121,263.58x = 11,302,868,274.72
  5. Step 5: Solve for x
    x = 11,302,868,274.72/121,263.58
  6. Step 6: Final answer
    x = 93,209.09

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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.