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Finding the Fourth Proportional to 117,393.68, 161,963.88 and 67,057.04

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Solution

The fourth proportional to 117,393.68, 161,963.88 and 67,057.04 is: 92,516.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,393.68 : 161,963.88 = 67,057.04 : x
  2. Step 2: Convert to fraction form
    117,393.68/161,963.88 = 67,057.04/x
  3. Step 3: Cross multiply
    117,393.68x = 161,963.88 × 67,057.04
  4. Step 4: Simplify right side
    117,393.68x = 10,860,818,379.72
  5. Step 5: Solve for x
    x = 10,860,818,379.72/117,393.68
  6. Step 6: Final answer
    x = 92,516.21

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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.