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Finding the Fourth Proportional to 133,859.53, 184,724.85 and 73,427.32

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Solution

The fourth proportional to 133,859.53, 184,724.85 and 73,427.32 is: 101,328.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,859.53 : 184,724.85 = 73,427.32 : x
  2. Step 2: Convert to fraction form
    133,859.53/184,724.85 = 73,427.32/x
  3. Step 3: Cross multiply
    133,859.53x = 184,724.85 × 73,427.32
  4. Step 4: Simplify right side
    133,859.53x = 13,563,850,672.90
  5. Step 5: Solve for x
    x = 13,563,850,672.90/133,859.53
  6. Step 6: Final answer
    x = 101,328.99

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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.