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Finding the Fourth Proportional to 91,125.88, 136,624.02 and 34,918.36

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Solution

The fourth proportional to 91,125.88, 136,624.02 and 34,918.36 is: 52,352.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,125.88 : 136,624.02 = 34,918.36 : x
  2. Step 2: Convert to fraction form
    91,125.88/136,624.02 = 34,918.36/x
  3. Step 3: Cross multiply
    91,125.88x = 136,624.02 × 34,918.36
  4. Step 4: Simplify right side
    91,125.88x = 4,770,686,715.01
  5. Step 5: Solve for x
    x = 4,770,686,715.01/91,125.88
  6. Step 6: Final answer
    x = 52,352.71

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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.