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Finding the Fourth Proportional to 91,889.84, 137,844.28 and 25,329.98

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Solution

The fourth proportional to 91,889.84, 137,844.28 and 25,329.98 is: 37,997.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,889.84 : 137,844.28 = 25,329.98 : x
  2. Step 2: Convert to fraction form
    91,889.84/137,844.28 = 25,329.98/x
  3. Step 3: Cross multiply
    91,889.84x = 137,844.28 × 25,329.98
  4. Step 4: Simplify right side
    91,889.84x = 3,491,592,855.51
  5. Step 5: Solve for x
    x = 3,491,592,855.51/91,889.84
  6. Step 6: Final answer
    x = 37,997.59

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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.