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Finding the Fourth Proportional to 251,578.56, 347,184.73 and 136,863.66

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Solution

The fourth proportional to 251,578.56, 347,184.73 and 136,863.66 is: 188,875.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,578.56 : 347,184.73 = 136,863.66 : x
  2. Step 2: Convert to fraction form
    251,578.56/347,184.73 = 136,863.66/x
  3. Step 3: Cross multiply
    251,578.56x = 347,184.73 × 136,863.66
  4. Step 4: Simplify right side
    251,578.56x = 47,516,972,843.91
  5. Step 5: Solve for x
    x = 47,516,972,843.91/251,578.56
  6. Step 6: Final answer
    x = 188,875.29

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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.