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Finding the Fourth Proportional to 75,808.60, 104,616.66 and 41,818.56

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Solution

The fourth proportional to 75,808.60, 104,616.66 and 41,818.56 is: 57,710.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,808.60 : 104,616.66 = 41,818.56 : x
  2. Step 2: Convert to fraction form
    75,808.60/104,616.66 = 41,818.56/x
  3. Step 3: Cross multiply
    75,808.60x = 104,616.66 × 41,818.56
  4. Step 4: Simplify right side
    75,808.60x = 4,374,918,073.21
  5. Step 5: Solve for x
    x = 4,374,918,073.21/75,808.60
  6. Step 6: Final answer
    x = 57,710.05

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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.