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Finding the Fourth Proportional to 74,817, 103,249.62 and 41,285.16

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Solution

The fourth proportional to 74,817, 103,249.62 and 41,285.16 is: 56,974.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,817 : 103,249.62 = 41,285.16 : x
  2. Step 2: Convert to fraction form
    74,817/103,249.62 = 41,285.16/x
  3. Step 3: Cross multiply
    74,817x = 103,249.62 × 41,285.16
  4. Step 4: Simplify right side
    74,817x = 4,262,677,081.64
  5. Step 5: Solve for x
    x = 4,262,677,081.64/74,817
  6. Step 6: Final answer
    x = 56,974.71

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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.