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Finding the Fourth Proportional to 103,375.62, 142,617.65 and 59,739.37

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Solution

The fourth proportional to 103,375.62, 142,617.65 and 59,739.37 is: 82,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,375.62 : 142,617.65 = 59,739.37 : x
  2. Step 2: Convert to fraction form
    103,375.62/142,617.65 = 59,739.37/x
  3. Step 3: Cross multiply
    103,375.62x = 142,617.65 × 59,739.37
  4. Step 4: Simplify right side
    103,375.62x = 8,519,887,906.64
  5. Step 5: Solve for x
    x = 8,519,887,906.64/103,375.62
  6. Step 6: Final answer
    x = 82,416.80

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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.