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Finding the Fourth Proportional to 133,825.75, 184,679.54 and 74,209.75

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Solution

The fourth proportional to 133,825.75, 184,679.54 and 74,209.75 is: 102,409.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,825.75 : 184,679.54 = 74,209.75 : x
  2. Step 2: Convert to fraction form
    133,825.75/184,679.54 = 74,209.75/x
  3. Step 3: Cross multiply
    133,825.75x = 184,679.54 × 74,209.75
  4. Step 4: Simplify right side
    133,825.75x = 13,705,022,493.52
  5. Step 5: Solve for x
    x = 13,705,022,493.52/133,825.75
  6. Step 6: Final answer
    x = 102,409.46

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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.