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Finding the Fourth Proportional to 104,399.74, 156,460.02 and 54,374.82

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Solution

The fourth proportional to 104,399.74, 156,460.02 and 54,374.82 is: 81,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,399.74 : 156,460.02 = 54,374.82 : x
  2. Step 2: Convert to fraction form
    104,399.74/156,460.02 = 54,374.82/x
  3. Step 3: Cross multiply
    104,399.74x = 156,460.02 × 54,374.82
  4. Step 4: Simplify right side
    104,399.74x = 8,507,485,424.70
  5. Step 5: Solve for x
    x = 8,507,485,424.70/104,399.74
  6. Step 6: Final answer
    x = 81,489.53

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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.