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Finding the Fourth Proportional to 121,055.67, 167,040.54 and 67,333.86

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Solution

The fourth proportional to 121,055.67, 167,040.54 and 67,333.86 is: 92,911.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,055.67 : 167,040.54 = 67,333.86 : x
  2. Step 2: Convert to fraction form
    121,055.67/167,040.54 = 67,333.86/x
  3. Step 3: Cross multiply
    121,055.67x = 167,040.54 × 67,333.86
  4. Step 4: Simplify right side
    121,055.67x = 11,247,484,334.68
  5. Step 5: Solve for x
    x = 11,247,484,334.68/121,055.67
  6. Step 6: Final answer
    x = 92,911.67

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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.