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Finding the Fourth Proportional to 73,318.93, 110,019.97 and 39,584.50

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Solution

The fourth proportional to 73,318.93, 110,019.97 and 39,584.50 is: 59,399.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,318.93 : 110,019.97 = 39,584.50 : x
  2. Step 2: Convert to fraction form
    73,318.93/110,019.97 = 39,584.50/x
  3. Step 3: Cross multiply
    73,318.93x = 110,019.97 × 39,584.50
  4. Step 4: Simplify right side
    73,318.93x = 4,355,085,276.90
  5. Step 5: Solve for x
    x = 4,355,085,276.90/73,318.93
  6. Step 6: Final answer
    x = 59,399.19

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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.