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Finding the Fourth Proportional to 122,373.86, 183,560.80 and 43,491.20

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Solution

The fourth proportional to 122,373.86, 183,560.80 and 43,491.20 is: 65,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,373.86 : 183,560.80 = 43,491.20 : x
  2. Step 2: Convert to fraction form
    122,373.86/183,560.80 = 43,491.20/x
  3. Step 3: Cross multiply
    122,373.86x = 183,560.80 × 43,491.20
  4. Step 4: Simplify right side
    122,373.86x = 7,983,279,464.96
  5. Step 5: Solve for x
    x = 7,983,279,464.96/122,373.86
  6. Step 6: Final answer
    x = 65,236.80

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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.