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Finding the Fourth Proportional to 118,154.56, 163,046.81 and 67,160.20

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Solution

The fourth proportional to 118,154.56, 163,046.81 and 67,160.20 is: 92,677.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,154.56 : 163,046.81 = 67,160.20 : x
  2. Step 2: Convert to fraction form
    118,154.56/163,046.81 = 67,160.20/x
  3. Step 3: Cross multiply
    118,154.56x = 163,046.81 × 67,160.20
  4. Step 4: Simplify right side
    118,154.56x = 10,950,256,368.96
  5. Step 5: Solve for x
    x = 10,950,256,368.96/118,154.56
  6. Step 6: Final answer
    x = 92,677.39

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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.