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Finding the Fourth Proportional to 117,147.08, 175,719.06 and 28,401.39

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Solution

The fourth proportional to 117,147.08, 175,719.06 and 28,401.39 is: 42,601.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,147.08 : 175,719.06 = 28,401.39 : x
  2. Step 2: Convert to fraction form
    117,147.08/175,719.06 = 28,401.39/x
  3. Step 3: Cross multiply
    117,147.08x = 175,719.06 × 28,401.39
  4. Step 4: Simplify right side
    117,147.08x = 4,990,665,553.49
  5. Step 5: Solve for x
    x = 4,990,665,553.49/117,147.08
  6. Step 6: Final answer
    x = 42,601.71

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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.