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Finding the Fourth Proportional to 74,589.68, 102,933.78 and 41,055.68

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Solution

The fourth proportional to 74,589.68, 102,933.78 and 41,055.68 is: 56,656.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,589.68 : 102,933.78 = 41,055.68 : x
  2. Step 2: Convert to fraction form
    74,589.68/102,933.78 = 41,055.68/x
  3. Step 3: Cross multiply
    74,589.68x = 102,933.78 × 41,055.68
  4. Step 4: Simplify right side
    74,589.68x = 4,226,016,332.87
  5. Step 5: Solve for x
    x = 4,226,016,332.87/74,589.68
  6. Step 6: Final answer
    x = 56,656.85

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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.