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Finding the Fourth Proportional to 57,522.80, 86,169.31 and 45,696.53

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Solution

The fourth proportional to 57,522.80, 86,169.31 and 45,696.53 is: 68,453.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,522.80 : 86,169.31 = 45,696.53 : x
  2. Step 2: Convert to fraction form
    57,522.80/86,169.31 = 45,696.53/x
  3. Step 3: Cross multiply
    57,522.80x = 86,169.31 × 45,696.53
  4. Step 4: Simplify right side
    57,522.80x = 3,937,638,459.49
  5. Step 5: Solve for x
    x = 3,937,638,459.49/57,522.80
  6. Step 6: Final answer
    x = 68,453.53

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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.