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Finding the Fourth Proportional to 91,155.66, 136,775.61 and 34,977.03

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Solution

The fourth proportional to 91,155.66, 136,775.61 and 34,977.03 is: 52,481.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,155.66 : 136,775.61 = 34,977.03 : x
  2. Step 2: Convert to fraction form
    91,155.66/136,775.61 = 34,977.03/x
  3. Step 3: Cross multiply
    91,155.66x = 136,775.61 × 34,977.03
  4. Step 4: Simplify right side
    91,155.66x = 4,784,004,614.24
  5. Step 5: Solve for x
    x = 4,784,004,614.24/91,155.66
  6. Step 6: Final answer
    x = 52,481.71

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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.