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Finding the Fourth Proportional to 117,505.66, 162,140.70 and 67,194.94

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Solution

The fourth proportional to 117,505.66, 162,140.70 and 67,194.94 is: 92,719.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,505.66 : 162,140.70 = 67,194.94 : x
  2. Step 2: Convert to fraction form
    117,505.66/162,140.70 = 67,194.94/x
  3. Step 3: Cross multiply
    117,505.66x = 162,140.70 × 67,194.94
  4. Step 4: Simplify right side
    117,505.66x = 10,895,034,608.06
  5. Step 5: Solve for x
    x = 10,895,034,608.06/117,505.66
  6. Step 6: Final answer
    x = 92,719.23

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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.