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Finding the Fourth Proportional to 121,466.53, 167,623.38 and 67,751.51

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Solution

The fourth proportional to 121,466.53, 167,623.38 and 67,751.51 is: 93,496.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,466.53 : 167,623.38 = 67,751.51 : x
  2. Step 2: Convert to fraction form
    121,466.53/167,623.38 = 67,751.51/x
  3. Step 3: Cross multiply
    121,466.53x = 167,623.38 × 67,751.51
  4. Step 4: Simplify right side
    121,466.53x = 11,356,737,106.30
  5. Step 5: Solve for x
    x = 11,356,737,106.30/121,466.53
  6. Step 6: Final answer
    x = 93,496.84

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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.