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Finding the Fourth Proportional to 100,266.39, 150,404.04 and 55,859.49

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Solution

The fourth proportional to 100,266.39, 150,404.04 and 55,859.49 is: 83,791.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,266.39 : 150,404.04 = 55,859.49 : x
  2. Step 2: Convert to fraction form
    100,266.39/150,404.04 = 55,859.49/x
  3. Step 3: Cross multiply
    100,266.39x = 150,404.04 × 55,859.49
  4. Step 4: Simplify right side
    100,266.39x = 8,401,492,968.34
  5. Step 5: Solve for x
    x = 8,401,492,968.34/100,266.39
  6. Step 6: Final answer
    x = 83,791.72

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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.