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Finding the Fourth Proportional to 45,057.90, 67,477.88 and 43,876.92

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Solution

The fourth proportional to 45,057.90, 67,477.88 and 43,876.92 is: 65,709.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,057.90 : 67,477.88 = 43,876.92 : x
  2. Step 2: Convert to fraction form
    45,057.90/67,477.88 = 43,876.92/x
  3. Step 3: Cross multiply
    45,057.90x = 67,477.88 × 43,876.92
  4. Step 4: Simplify right side
    45,057.90x = 2,960,721,542.53
  5. Step 5: Solve for x
    x = 2,960,721,542.53/45,057.90
  6. Step 6: Final answer
    x = 65,709.27

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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.