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Finding the Fourth Proportional to 247,518.47, 371,218.22 and 114,270.74

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Solution

The fourth proportional to 247,518.47, 371,218.22 and 114,270.74 is: 171,378.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,518.47 : 371,218.22 = 114,270.74 : x
  2. Step 2: Convert to fraction form
    247,518.47/371,218.22 = 114,270.74/x
  3. Step 3: Cross multiply
    247,518.47x = 371,218.22 × 114,270.74
  4. Step 4: Simplify right side
    247,518.47x = 42,419,378,273.44
  5. Step 5: Solve for x
    x = 42,419,378,273.44/247,518.47
  6. Step 6: Final answer
    x = 171,378.64

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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.