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Finding the Fourth Proportional to 91,080.78, 125,691.23 and 50,794.59

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Solution

The fourth proportional to 91,080.78, 125,691.23 and 50,794.59 is: 70,096.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,080.78 : 125,691.23 = 50,794.59 : x
  2. Step 2: Convert to fraction form
    91,080.78/125,691.23 = 50,794.59/x
  3. Step 3: Cross multiply
    91,080.78x = 125,691.23 × 50,794.59
  4. Step 4: Simplify right side
    91,080.78x = 6,384,434,494.45
  5. Step 5: Solve for x
    x = 6,384,434,494.45/91,080.78
  6. Step 6: Final answer
    x = 70,096.40

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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.