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Finding the Fourth Proportional to 74,497.67, 111,816.72 and 27,158.53

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Solution

The fourth proportional to 74,497.67, 111,816.72 and 27,158.53 is: 40,763.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,497.67 : 111,816.72 = 27,158.53 : x
  2. Step 2: Convert to fraction form
    74,497.67/111,816.72 = 27,158.53/x
  3. Step 3: Cross multiply
    74,497.67x = 111,816.72 × 27,158.53
  4. Step 4: Simplify right side
    74,497.67x = 3,036,777,744.62
  5. Step 5: Solve for x
    x = 3,036,777,744.62/74,497.67
  6. Step 6: Final answer
    x = 40,763.39

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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.