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Finding the Fourth Proportional to 45,885.80, 68,828.70 and 44,136.20

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Solution

The fourth proportional to 45,885.80, 68,828.70 and 44,136.20 is: 66,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,885.80 : 68,828.70 = 44,136.20 : x
  2. Step 2: Convert to fraction form
    45,885.80/68,828.70 = 44,136.20/x
  3. Step 3: Cross multiply
    45,885.80x = 68,828.70 × 44,136.20
  4. Step 4: Simplify right side
    45,885.80x = 3,037,837,268.94
  5. Step 5: Solve for x
    x = 3,037,837,268.94/45,885.80
  6. Step 6: Final answer
    x = 66,204.30

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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.