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Finding the Fourth Proportional to 91,469.36, 137,220.36 and 32,339.36

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Solution

The fourth proportional to 91,469.36, 137,220.36 and 32,339.36 is: 48,514.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,469.36 : 137,220.36 = 32,339.36 : x
  2. Step 2: Convert to fraction form
    91,469.36/137,220.36 = 32,339.36/x
  3. Step 3: Cross multiply
    91,469.36x = 137,220.36 × 32,339.36
  4. Step 4: Simplify right side
    91,469.36x = 4,437,618,621.37
  5. Step 5: Solve for x
    x = 4,437,618,621.37/91,469.36
  6. Step 6: Final answer
    x = 48,514.81

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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.