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Finding the Fourth Proportional to 55,579.98, 83,371.20 and 20,044.16

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Solution

The fourth proportional to 55,579.98, 83,371.20 and 20,044.16 is: 30,066.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,579.98 : 83,371.20 = 20,044.16 : x
  2. Step 2: Convert to fraction form
    55,579.98/83,371.20 = 20,044.16/x
  3. Step 3: Cross multiply
    55,579.98x = 83,371.20 × 20,044.16
  4. Step 4: Simplify right side
    55,579.98x = 1,671,105,255.34
  5. Step 5: Solve for x
    x = 1,671,105,255.34/55,579.98
  6. Step 6: Final answer
    x = 30,066.68

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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.