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Finding the Fourth Proportional to 133,777.19, 184,616.04 and 75,629.30

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Solution

The fourth proportional to 133,777.19, 184,616.04 and 75,629.30 is: 104,370.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,777.19 : 184,616.04 = 75,629.30 : x
  2. Step 2: Convert to fraction form
    133,777.19/184,616.04 = 75,629.30/x
  3. Step 3: Cross multiply
    133,777.19x = 184,616.04 × 75,629.30
  4. Step 4: Simplify right side
    133,777.19x = 13,962,381,873.97
  5. Step 5: Solve for x
    x = 13,962,381,873.97/133,777.19
  6. Step 6: Final answer
    x = 104,370.42

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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.