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Finding the Fourth Proportional to 133,690.75, 184,493.24 and 74,074.75

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Solution

The fourth proportional to 133,690.75, 184,493.24 and 74,074.75 is: 102,223.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,690.75 : 184,493.24 = 74,074.75 : x
  2. Step 2: Convert to fraction form
    133,690.75/184,493.24 = 74,074.75/x
  3. Step 3: Cross multiply
    133,690.75x = 184,493.24 × 74,074.75
  4. Step 4: Simplify right side
    133,690.75x = 13,666,290,629.69
  5. Step 5: Solve for x
    x = 13,666,290,629.69/133,690.75
  6. Step 6: Final answer
    x = 102,223.16

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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.