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Finding the Fourth Proportional to 121,670.46, 167,904.75 and 67,955.46

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Solution

The fourth proportional to 121,670.46, 167,904.75 and 67,955.46 is: 93,778.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,670.46 : 167,904.75 = 67,955.46 : x
  2. Step 2: Convert to fraction form
    121,670.46/167,904.75 = 67,955.46/x
  3. Step 3: Cross multiply
    121,670.46x = 167,904.75 × 67,955.46
  4. Step 4: Simplify right side
    121,670.46x = 11,410,044,522.44
  5. Step 5: Solve for x
    x = 11,410,044,522.44/121,670.46
  6. Step 6: Final answer
    x = 93,778.26

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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.