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Finding the Fourth Proportional to 74,604.68, 102,968.26 and 42,773.80

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Solution

The fourth proportional to 74,604.68, 102,968.26 and 42,773.80 is: 59,035.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,604.68 : 102,968.26 = 42,773.80 : x
  2. Step 2: Convert to fraction form
    74,604.68/102,968.26 = 42,773.80/x
  3. Step 3: Cross multiply
    74,604.68x = 102,968.26 × 42,773.80
  4. Step 4: Simplify right side
    74,604.68x = 4,404,343,759.59
  5. Step 5: Solve for x
    x = 4,404,343,759.59/74,604.68
  6. Step 6: Final answer
    x = 59,035.76

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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.