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Finding the Fourth Proportional to 118,114.20, 162,991.98 and 67,125.60

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Solution

The fourth proportional to 118,114.20, 162,991.98 and 67,125.60 is: 92,630.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,114.20 : 162,991.98 = 67,125.60 : x
  2. Step 2: Convert to fraction form
    118,114.20/162,991.98 = 67,125.60/x
  3. Step 3: Cross multiply
    118,114.20x = 162,991.98 × 67,125.60
  4. Step 4: Simplify right side
    118,114.20x = 10,940,934,452.69
  5. Step 5: Solve for x
    x = 10,940,934,452.69/118,114.20
  6. Step 6: Final answer
    x = 92,630.14

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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.