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Finding the Fourth Proportional to 99,992.16, 150,061.92 and 47,401.44

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Solution

The fourth proportional to 99,992.16, 150,061.92 and 47,401.44 is: 71,137.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,992.16 : 150,061.92 = 47,401.44 : x
  2. Step 2: Convert to fraction form
    99,992.16/150,061.92 = 47,401.44/x
  3. Step 3: Cross multiply
    99,992.16x = 150,061.92 × 47,401.44
  4. Step 4: Simplify right side
    99,992.16x = 7,113,151,097.16
  5. Step 5: Solve for x
    x = 7,113,151,097.16/99,992.16
  6. Step 6: Final answer
    x = 71,137.09

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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.