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Finding the Fourth Proportional to 69,046.44, 103,346.91 and 35,720.61

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Solution

The fourth proportional to 69,046.44, 103,346.91 and 35,720.61 is: 53,465.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,046.44 : 103,346.91 = 35,720.61 : x
  2. Step 2: Convert to fraction form
    69,046.44/103,346.91 = 35,720.61/x
  3. Step 3: Cross multiply
    69,046.44x = 103,346.91 × 35,720.61
  4. Step 4: Simplify right side
    69,046.44x = 3,691,614,666.82
  5. Step 5: Solve for x
    x = 3,691,614,666.82/69,046.44
  6. Step 6: Final answer
    x = 53,465.68

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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.