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Finding the Fourth Proportional to 73,408.15, 110,601.52 and 66,395.98

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Solution

The fourth proportional to 73,408.15, 110,601.52 and 66,395.98 is: 100,036.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,408.15 : 110,601.52 = 66,395.98 : x
  2. Step 2: Convert to fraction form
    73,408.15/110,601.52 = 66,395.98/x
  3. Step 3: Cross multiply
    73,408.15x = 110,601.52 × 66,395.98
  4. Step 4: Simplify right side
    73,408.15x = 7,343,496,309.89
  5. Step 5: Solve for x
    x = 7,343,496,309.89/73,408.15
  6. Step 6: Final answer
    x = 100,036.53

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.