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Finding the Fourth Proportional to 122,203.68, 183,311.18 and 43,325.88

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Solution

The fourth proportional to 122,203.68, 183,311.18 and 43,325.88 is: 64,990.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,203.68 : 183,311.18 = 43,325.88 : x
  2. Step 2: Convert to fraction form
    122,203.68/183,311.18 = 43,325.88/x
  3. Step 3: Cross multiply
    122,203.68x = 183,311.18 × 43,325.88
  4. Step 4: Simplify right side
    122,203.68x = 7,942,118,187.34
  5. Step 5: Solve for x
    x = 7,942,118,187.34/122,203.68
  6. Step 6: Final answer
    x = 64,990.83

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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.