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Finding the Fourth Proportional to 133,578.88, 184,338.90 and 73,153.28

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Solution

The fourth proportional to 133,578.88, 184,338.90 and 73,153.28 is: 100,951.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,578.88 : 184,338.90 = 73,153.28 : x
  2. Step 2: Convert to fraction form
    133,578.88/184,338.90 = 73,153.28/x
  3. Step 3: Cross multiply
    133,578.88x = 184,338.90 × 73,153.28
  4. Step 4: Simplify right side
    133,578.88x = 13,484,995,166.59
  5. Step 5: Solve for x
    x = 13,484,995,166.59/133,578.88
  6. Step 6: Final answer
    x = 100,951.55

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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.