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Finding the Fourth Proportional to 118,883.60, 178,227.12 and 92,704.40

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Solution

The fourth proportional to 118,883.60, 178,227.12 and 92,704.40 is: 138,979.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,883.60 : 178,227.12 = 92,704.40 : x
  2. Step 2: Convert to fraction form
    118,883.60/178,227.12 = 92,704.40/x
  3. Step 3: Cross multiply
    118,883.60x = 178,227.12 × 92,704.40
  4. Step 4: Simplify right side
    118,883.60x = 16,522,438,223.33
  5. Step 5: Solve for x
    x = 16,522,438,223.33/118,883.60
  6. Step 6: Final answer
    x = 138,979.96

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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.