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Finding the Fourth Proportional to 118,154.80, 163,025.61 and 67,163.54

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Solution

The fourth proportional to 118,154.80, 163,025.61 and 67,163.54 is: 92,669.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,154.80 : 163,025.61 = 67,163.54 : x
  2. Step 2: Convert to fraction form
    118,154.80/163,025.61 = 67,163.54/x
  3. Step 3: Cross multiply
    118,154.80x = 163,025.61 × 67,163.54
  4. Step 4: Simplify right side
    118,154.80x = 10,949,376,011.27
  5. Step 5: Solve for x
    x = 10,949,376,011.27/118,154.80
  6. Step 6: Final answer
    x = 92,669.75

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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.