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Finding the Fourth Proportional to 104,424.40, 156,685.20 and 54,560.80

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Solution

The fourth proportional to 104,424.40, 156,685.20 and 54,560.80 is: 81,866.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,424.40 : 156,685.20 = 54,560.80 : x
  2. Step 2: Convert to fraction form
    104,424.40/156,685.20 = 54,560.80/x
  3. Step 3: Cross multiply
    104,424.40x = 156,685.20 × 54,560.80
  4. Step 4: Simplify right side
    104,424.40x = 8,548,869,860.16
  5. Step 5: Solve for x
    x = 8,548,869,860.16/104,424.40
  6. Step 6: Final answer
    x = 81,866.59

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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.