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Finding the Fourth Proportional to 117,406.69, 162,021.24 and 67,115.41

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Solution

The fourth proportional to 117,406.69, 162,021.24 and 67,115.41 is: 92,619.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,406.69 : 162,021.24 = 67,115.41 : x
  2. Step 2: Convert to fraction form
    117,406.69/162,021.24 = 67,115.41/x
  3. Step 3: Cross multiply
    117,406.69x = 162,021.24 × 67,115.41
  4. Step 4: Simplify right side
    117,406.69x = 10,874,121,546.26
  5. Step 5: Solve for x
    x = 10,874,121,546.26/117,406.69
  6. Step 6: Final answer
    x = 92,619.27

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1.5x scale

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.