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Finding the Fourth Proportional to 118,331.10, 163,297.81 and 67,347.71

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Solution

The fourth proportional to 118,331.10, 163,297.81 and 67,347.71 is: 92,940.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,331.10 : 163,297.81 = 67,347.71 : x
  2. Step 2: Convert to fraction form
    118,331.10/163,297.81 = 67,347.71/x
  3. Step 3: Cross multiply
    118,331.10x = 163,297.81 × 67,347.71
  4. Step 4: Simplify right side
    118,331.10x = 10,997,733,431.58
  5. Step 5: Solve for x
    x = 10,997,733,431.58/118,331.10
  6. Step 6: Final answer
    x = 92,940.35

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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.