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Finding the Fourth Proportional to 103,662.48, 143,052.49 and 58,340.41

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Solution

The fourth proportional to 103,662.48, 143,052.49 and 58,340.41 is: 80,508.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,662.48 : 143,052.49 = 58,340.41 : x
  2. Step 2: Convert to fraction form
    103,662.48/143,052.49 = 58,340.41/x
  3. Step 3: Cross multiply
    103,662.48x = 143,052.49 × 58,340.41
  4. Step 4: Simplify right side
    103,662.48x = 8,345,740,918.12
  5. Step 5: Solve for x
    x = 8,345,740,918.12/103,662.48
  6. Step 6: Final answer
    x = 80,508.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.