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Finding the Fourth Proportional to 73,355.81, 110,074.59 and 39,621.14

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Solution

The fourth proportional to 73,355.81, 110,074.59 and 39,621.14 is: 59,453.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,355.81 : 110,074.59 = 39,621.14 : x
  2. Step 2: Convert to fraction form
    73,355.81/110,074.59 = 39,621.14/x
  3. Step 3: Cross multiply
    73,355.81x = 110,074.59 × 39,621.14
  4. Step 4: Simplify right side
    73,355.81x = 4,361,280,740.83
  5. Step 5: Solve for x
    x = 4,361,280,740.83/73,355.81
  6. Step 6: Final answer
    x = 59,453.79

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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.