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Finding the Fourth Proportional to 79,234.56, 109,339.20 and 43,417.44

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Solution

The fourth proportional to 79,234.56, 109,339.20 and 43,417.44 is: 59,913.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,234.56 : 109,339.20 = 43,417.44 : x
  2. Step 2: Convert to fraction form
    79,234.56/109,339.20 = 43,417.44/x
  3. Step 3: Cross multiply
    79,234.56x = 109,339.20 × 43,417.44
  4. Step 4: Simplify right side
    79,234.56x = 4,747,228,155.65
  5. Step 5: Solve for x
    x = 4,747,228,155.65/79,234.56
  6. Step 6: Final answer
    x = 59,913.61

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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.