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Finding the Fourth Proportional to 189,601.75, 284,449.40 and 56,481.49

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Solution

The fourth proportional to 189,601.75, 284,449.40 and 56,481.49 is: 84,736.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,601.75 : 284,449.40 = 56,481.49 : x
  2. Step 2: Convert to fraction form
    189,601.75/284,449.40 = 56,481.49/x
  3. Step 3: Cross multiply
    189,601.75x = 284,449.40 × 56,481.49
  4. Step 4: Simplify right side
    189,601.75x = 16,066,125,941.61
  5. Step 5: Solve for x
    x = 16,066,125,941.61/189,601.75
  6. Step 6: Final answer
    x = 84,736.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.