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Finding the Fourth Proportional to 122,376.49, 183,564.74 and 43,493.83

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Solution

The fourth proportional to 122,376.49, 183,564.74 and 43,493.83 is: 65,240.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,376.49 : 183,564.74 = 43,493.83 : x
  2. Step 2: Convert to fraction form
    122,376.49/183,564.74 = 43,493.83/x
  3. Step 3: Cross multiply
    122,376.49x = 183,564.74 × 43,493.83
  4. Step 4: Simplify right side
    122,376.49x = 7,983,933,595.55
  5. Step 5: Solve for x
    x = 7,983,933,595.55/122,376.49
  6. Step 6: Final answer
    x = 65,240.75

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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.