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Finding the Fourth Proportional to 55,809.88, 76,849.14 and 48,242.68

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Solution

The fourth proportional to 55,809.88, 76,849.14 and 48,242.68 is: 66,429.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,809.88 : 76,849.14 = 48,242.68 : x
  2. Step 2: Convert to fraction form
    55,809.88/76,849.14 = 48,242.68/x
  3. Step 3: Cross multiply
    55,809.88x = 76,849.14 × 48,242.68
  4. Step 4: Simplify right side
    55,809.88x = 3,707,408,469.30
  5. Step 5: Solve for x
    x = 3,707,408,469.30/55,809.88
  6. Step 6: Final answer
    x = 66,429.25

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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.