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Finding the Fourth Proportional to 133,920.36, 184,812.87 and 73,487.46

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Solution

The fourth proportional to 133,920.36, 184,812.87 and 73,487.46 is: 101,414.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,920.36 : 184,812.87 = 73,487.46 : x
  2. Step 2: Convert to fraction form
    133,920.36/184,812.87 = 73,487.46/x
  3. Step 3: Cross multiply
    133,920.36x = 184,812.87 × 73,487.46
  4. Step 4: Simplify right side
    133,920.36x = 13,581,428,391.61
  5. Step 5: Solve for x
    x = 13,581,428,391.61/133,920.36
  6. Step 6: Final answer
    x = 101,414.22

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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.