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Finding the Fourth Proportional to 57,583.36, 86,260.56 and 45,044.83

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Solution

The fourth proportional to 57,583.36, 86,260.56 and 45,044.83 is: 67,477.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,583.36 : 86,260.56 = 45,044.83 : x
  2. Step 2: Convert to fraction form
    57,583.36/86,260.56 = 45,044.83/x
  3. Step 3: Cross multiply
    57,583.36x = 86,260.56 × 45,044.83
  4. Step 4: Simplify right side
    57,583.36x = 3,885,592,260.90
  5. Step 5: Solve for x
    x = 3,885,592,260.90/57,583.36
  6. Step 6: Final answer
    x = 67,477.69

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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.