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Finding the Fourth Proportional to 122,372.49, 183,558.72 and 43,489.83

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Solution

The fourth proportional to 122,372.49, 183,558.72 and 43,489.83 is: 65,234.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,372.49 : 183,558.72 = 43,489.83 : x
  2. Step 2: Convert to fraction form
    122,372.49/183,558.72 = 43,489.83/x
  3. Step 3: Cross multiply
    122,372.49x = 183,558.72 × 43,489.83
  4. Step 4: Simplify right side
    122,372.49x = 7,982,937,527.82
  5. Step 5: Solve for x
    x = 7,982,937,527.82/122,372.49
  6. Step 6: Final answer
    x = 65,234.74

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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.