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Finding the Fourth Proportional to 251,216.39, 376,866.84 and 82,785.26

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Solution

The fourth proportional to 251,216.39, 376,866.84 and 82,785.26 is: 124,191.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,216.39 : 376,866.84 = 82,785.26 : x
  2. Step 2: Convert to fraction form
    251,216.39/376,866.84 = 82,785.26/x
  3. Step 3: Cross multiply
    251,216.39x = 376,866.84 × 82,785.26
  4. Step 4: Simplify right side
    251,216.39x = 31,199,019,334.78
  5. Step 5: Solve for x
    x = 31,199,019,334.78/251,216.39
  6. Step 6: Final answer
    x = 124,191.81

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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.