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Finding the Fourth Proportional to 91,752.67, 137,628.75 and 25,192.87

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Solution

The fourth proportional to 91,752.67, 137,628.75 and 25,192.87 is: 37,789.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,752.67 : 137,628.75 = 25,192.87 : x
  2. Step 2: Convert to fraction form
    91,752.67/137,628.75 = 25,192.87/x
  3. Step 3: Cross multiply
    91,752.67x = 137,628.75 × 25,192.87
  4. Step 4: Simplify right side
    91,752.67x = 3,467,263,207.01
  5. Step 5: Solve for x
    x = 3,467,263,207.01/91,752.67
  6. Step 6: Final answer
    x = 37,789.23

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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.