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Finding the Fourth Proportional to 91,745.81, 137,593.81 and 25,170.19

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Solution

The fourth proportional to 91,745.81, 137,593.81 and 25,170.19 is: 37,748.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,745.81 : 137,593.81 = 25,170.19 : x
  2. Step 2: Convert to fraction form
    91,745.81/137,593.81 = 25,170.19/x
  3. Step 3: Cross multiply
    91,745.81x = 137,593.81 × 25,170.19
  4. Step 4: Simplify right side
    91,745.81x = 3,463,262,340.52
  5. Step 5: Solve for x
    x = 3,463,262,340.52/91,745.81
  6. Step 6: Final answer
    x = 37,748.45

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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.