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Finding the Fourth Proportional to 247,816.40, 372,016.20 and 246,066.80

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Solution

The fourth proportional to 247,816.40, 372,016.20 and 246,066.80 is: 369,389.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,816.40 : 372,016.20 = 246,066.80 : x
  2. Step 2: Convert to fraction form
    247,816.40/372,016.20 = 246,066.80/x
  3. Step 3: Cross multiply
    247,816.40x = 372,016.20 × 246,066.80
  4. Step 4: Simplify right side
    247,816.40x = 91,540,835,882.16
  5. Step 5: Solve for x
    x = 91,540,835,882.16/247,816.40
  6. Step 6: Final answer
    x = 369,389.74

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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.