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Finding the Fourth Proportional to 264,636.40, 396,954.60 and 164,471.80

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Solution

The fourth proportional to 264,636.40, 396,954.60 and 164,471.80 is: 246,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,636.40 : 396,954.60 = 164,471.80 : x
  2. Step 2: Convert to fraction form
    264,636.40/396,954.60 = 164,471.80/x
  3. Step 3: Cross multiply
    264,636.40x = 396,954.60 × 164,471.80
  4. Step 4: Simplify right side
    264,636.40x = 65,287,837,580.28
  5. Step 5: Solve for x
    x = 65,287,837,580.28/264,636.40
  6. Step 6: Final answer
    x = 246,707.70

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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.