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Finding the Fourth Proportional to 247,022.78, 340,892.61 and 133,845.50

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Solution

The fourth proportional to 247,022.78, 340,892.61 and 133,845.50 is: 184,707.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,022.78 : 340,892.61 = 133,845.50 : x
  2. Step 2: Convert to fraction form
    247,022.78/340,892.61 = 133,845.50/x
  3. Step 3: Cross multiply
    247,022.78x = 340,892.61 × 133,845.50
  4. Step 4: Simplify right side
    247,022.78x = 45,626,941,831.76
  5. Step 5: Solve for x
    x = 45,626,941,831.76/247,022.78
  6. Step 6: Final answer
    x = 184,707.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.