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Finding the Fourth Proportional to 75,636.66, 104,377.73 and 41,644.45

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Solution

The fourth proportional to 75,636.66, 104,377.73 and 41,644.45 is: 57,468.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,636.66 : 104,377.73 = 41,644.45 : x
  2. Step 2: Convert to fraction form
    75,636.66/104,377.73 = 41,644.45/x
  3. Step 3: Cross multiply
    75,636.66x = 104,377.73 × 41,644.45
  4. Step 4: Simplify right side
    75,636.66x = 4,346,753,158.10
  5. Step 5: Solve for x
    x = 4,346,753,158.10/75,636.66
  6. Step 6: Final answer
    x = 57,468.87

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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.