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Finding the Fourth Proportional to 133,616.25, 184,385.03 and 79,930.94

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Solution

The fourth proportional to 133,616.25, 184,385.03 and 79,930.94 is: 110,301.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,616.25 : 184,385.03 = 79,930.94 : x
  2. Step 2: Convert to fraction form
    133,616.25/184,385.03 = 79,930.94/x
  3. Step 3: Cross multiply
    133,616.25x = 184,385.03 × 79,930.94
  4. Step 4: Simplify right side
    133,616.25x = 14,738,067,448.25
  5. Step 5: Solve for x
    x = 14,738,067,448.25/133,616.25
  6. Step 6: Final answer
    x = 110,301.46

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1.5x scale

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.