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Finding the Fourth Proportional to 99,785.52, 149,680.71 and 29,665.44

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Solution

The fourth proportional to 99,785.52, 149,680.71 and 29,665.44 is: 44,498.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,785.52 : 149,680.71 = 29,665.44 : x
  2. Step 2: Convert to fraction form
    99,785.52/149,680.71 = 29,665.44/x
  3. Step 3: Cross multiply
    99,785.52x = 149,680.71 × 29,665.44
  4. Step 4: Simplify right side
    99,785.52x = 4,440,344,121.66
  5. Step 5: Solve for x
    x = 4,440,344,121.66/99,785.52
  6. Step 6: Final answer
    x = 44,498.88

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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.