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Finding the Fourth Proportional to 100,537.88, 150,806.69 and 25,658.02

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Solution

The fourth proportional to 100,537.88, 150,806.69 and 25,658.02 is: 38,487.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,537.88 : 150,806.69 = 25,658.02 : x
  2. Step 2: Convert to fraction form
    100,537.88/150,806.69 = 25,658.02/x
  3. Step 3: Cross multiply
    100,537.88x = 150,806.69 × 25,658.02
  4. Step 4: Simplify right side
    100,537.88x = 3,869,401,381.03
  5. Step 5: Solve for x
    x = 3,869,401,381.03/100,537.88
  6. Step 6: Final answer
    x = 38,487.00

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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.