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Finding the Fourth Proportional to 133,780.37, 184,625.21 and 74,164.37

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Solution

The fourth proportional to 133,780.37, 184,625.21 and 74,164.37 is: 102,351.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,780.37 : 184,625.21 = 74,164.37 : x
  2. Step 2: Convert to fraction form
    133,780.37/184,625.21 = 74,164.37/x
  3. Step 3: Cross multiply
    133,780.37x = 184,625.21 × 74,164.37
  4. Step 4: Simplify right side
    133,780.37x = 13,692,612,014.95
  5. Step 5: Solve for x
    x = 13,692,612,014.95/133,780.37
  6. Step 6: Final answer
    x = 102,351.43

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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.