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Finding the Fourth Proportional to 73,216.48, 109,785.25 and 39,500.58

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Solution

The fourth proportional to 73,216.48, 109,785.25 and 39,500.58 is: 59,229.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,216.48 : 109,785.25 = 39,500.58 : x
  2. Step 2: Convert to fraction form
    73,216.48/109,785.25 = 39,500.58/x
  3. Step 3: Cross multiply
    73,216.48x = 109,785.25 × 39,500.58
  4. Step 4: Simplify right side
    73,216.48x = 4,336,581,050.45
  5. Step 5: Solve for x
    x = 4,336,581,050.45/73,216.48
  6. Step 6: Final answer
    x = 59,229.58

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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.