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Finding the Fourth Proportional to 74,326.68, 111,522.96 and 30,039.96

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Solution

The fourth proportional to 74,326.68, 111,522.96 and 30,039.96 is: 45,073.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,326.68 : 111,522.96 = 30,039.96 : x
  2. Step 2: Convert to fraction form
    74,326.68/111,522.96 = 30,039.96/x
  3. Step 3: Cross multiply
    74,326.68x = 111,522.96 × 30,039.96
  4. Step 4: Simplify right side
    74,326.68x = 3,350,145,257.48
  5. Step 5: Solve for x
    x = 3,350,145,257.48/74,326.68
  6. Step 6: Final answer
    x = 45,073.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.