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Finding the Fourth Proportional to 74,656.28, 103,025.67 and 41,122.28

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Solution

The fourth proportional to 74,656.28, 103,025.67 and 41,122.28 is: 56,748.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,656.28 : 103,025.67 = 41,122.28 : x
  2. Step 2: Convert to fraction form
    74,656.28/103,025.67 = 41,122.28/x
  3. Step 3: Cross multiply
    74,656.28x = 103,025.67 × 41,122.28
  4. Step 4: Simplify right side
    74,656.28x = 4,236,650,448.93
  5. Step 5: Solve for x
    x = 4,236,650,448.93/74,656.28
  6. Step 6: Final answer
    x = 56,748.75

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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.