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Finding the Fourth Proportional to 75,124.79, 103,669 and 41,132.66

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Solution

The fourth proportional to 75,124.79, 103,669 and 41,132.66 is: 56,761.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,124.79 : 103,669 = 41,132.66 : x
  2. Step 2: Convert to fraction form
    75,124.79/103,669 = 41,132.66/x
  3. Step 3: Cross multiply
    75,124.79x = 103,669 × 41,132.66
  4. Step 4: Simplify right side
    75,124.79x = 4,264,181,729.54
  5. Step 5: Solve for x
    x = 4,264,181,729.54/75,124.79
  6. Step 6: Final answer
    x = 56,761.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.