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Finding the Fourth Proportional to 133,438.67, 184,143.81 and 73,008.62

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Solution

The fourth proportional to 133,438.67, 184,143.81 and 73,008.62 is: 100,751.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,438.67 : 184,143.81 = 73,008.62 : x
  2. Step 2: Convert to fraction form
    133,438.67/184,143.81 = 73,008.62/x
  3. Step 3: Cross multiply
    133,438.67x = 184,143.81 × 73,008.62
  4. Step 4: Simplify right side
    133,438.67x = 13,444,085,449.64
  5. Step 5: Solve for x
    x = 13,444,085,449.64/133,438.67
  6. Step 6: Final answer
    x = 100,751.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.