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Finding the Fourth Proportional to 133,794.40, 200,691.60 and 89,276.80

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Solution

The fourth proportional to 133,794.40, 200,691.60 and 89,276.80 is: 133,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,794.40 : 200,691.60 = 89,276.80 : x
  2. Step 2: Convert to fraction form
    133,794.40/200,691.60 = 89,276.80/x
  3. Step 3: Cross multiply
    133,794.40x = 200,691.60 × 89,276.80
  4. Step 4: Simplify right side
    133,794.40x = 17,917,103,834.88
  5. Step 5: Solve for x
    x = 17,917,103,834.88/133,794.40
  6. Step 6: Final answer
    x = 133,915.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.