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Finding the Fourth Proportional to 264,629.80, 396,483.90 and 171,087.40

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Solution

The fourth proportional to 264,629.80, 396,483.90 and 171,087.40 is: 256,333.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,629.80 : 396,483.90 = 171,087.40 : x
  2. Step 2: Convert to fraction form
    264,629.80/396,483.90 = 171,087.40/x
  3. Step 3: Cross multiply
    264,629.80x = 396,483.90 × 171,087.40
  4. Step 4: Simplify right side
    264,629.80x = 67,833,399,592.86
  5. Step 5: Solve for x
    x = 67,833,399,592.86/264,629.80
  6. Step 6: Final answer
    x = 256,333.19

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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.