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Finding the Fourth Proportional to 121,243.95, 167,316.48 and 67,533.66

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Solution

The fourth proportional to 121,243.95, 167,316.48 and 67,533.66 is: 93,196.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,243.95 : 167,316.48 = 67,533.66 : x
  2. Step 2: Convert to fraction form
    121,243.95/167,316.48 = 67,533.66/x
  3. Step 3: Cross multiply
    121,243.95x = 167,316.48 × 67,533.66
  4. Step 4: Simplify right side
    121,243.95x = 11,299,494,272.72
  5. Step 5: Solve for x
    x = 11,299,494,272.72/121,243.95
  6. Step 6: Final answer
    x = 93,196.36

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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.