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Finding the Fourth Proportional to 45,442.53, 68,167.44 and 15,859.71

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Solution

The fourth proportional to 45,442.53, 68,167.44 and 15,859.71 is: 23,790.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,442.53 : 68,167.44 = 15,859.71 : x
  2. Step 2: Convert to fraction form
    45,442.53/68,167.44 = 15,859.71/x
  3. Step 3: Cross multiply
    45,442.53x = 68,167.44 × 15,859.71
  4. Step 4: Simplify right side
    45,442.53x = 1,081,115,829.84
  5. Step 5: Solve for x
    x = 1,081,115,829.84/45,442.53
  6. Step 6: Final answer
    x = 23,790.84

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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.