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Finding the Fourth Proportional to 164,906.60, 247,359.90 and 40,247.60

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Solution

The fourth proportional to 164,906.60, 247,359.90 and 40,247.60 is: 60,371.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,906.60 : 247,359.90 = 40,247.60 : x
  2. Step 2: Convert to fraction form
    164,906.60/247,359.90 = 40,247.60/x
  3. Step 3: Cross multiply
    164,906.60x = 247,359.90 × 40,247.60
  4. Step 4: Simplify right side
    164,906.60x = 9,955,642,311.24
  5. Step 5: Solve for x
    x = 9,955,642,311.24/164,906.60
  6. Step 6: Final answer
    x = 60,371.40

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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.