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Finding the Fourth Proportional to 74,522.59, 111,751.08 and 39,454.05

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Solution

The fourth proportional to 74,522.59, 111,751.08 and 39,454.05 is: 59,163.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,522.59 : 111,751.08 = 39,454.05 : x
  2. Step 2: Convert to fraction form
    74,522.59/111,751.08 = 39,454.05/x
  3. Step 3: Cross multiply
    74,522.59x = 111,751.08 × 39,454.05
  4. Step 4: Simplify right side
    74,522.59x = 4,409,032,697.87
  5. Step 5: Solve for x
    x = 4,409,032,697.87/74,522.59
  6. Step 6: Final answer
    x = 59,163.71

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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.