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Finding the Fourth Proportional to 71,097.36, 106,553.43 and 28,928.22

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Solution

The fourth proportional to 71,097.36, 106,553.43 and 28,928.22 is: 43,354.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,097.36 : 106,553.43 = 28,928.22 : x
  2. Step 2: Convert to fraction form
    71,097.36/106,553.43 = 28,928.22/x
  3. Step 3: Cross multiply
    71,097.36x = 106,553.43 × 28,928.22
  4. Step 4: Simplify right side
    71,097.36x = 3,082,401,064.79
  5. Step 5: Solve for x
    x = 3,082,401,064.79/71,097.36
  6. Step 6: Final answer
    x = 43,354.65

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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.