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Finding the Fourth Proportional to 264,130.80, 396,487.80 and 164,403.60

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Solution

The fourth proportional to 264,130.80, 396,487.80 and 164,403.60 is: 246,786.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,130.80 : 396,487.80 = 164,403.60 : x
  2. Step 2: Convert to fraction form
    264,130.80/396,487.80 = 164,403.60/x
  3. Step 3: Cross multiply
    264,130.80x = 396,487.80 × 164,403.60
  4. Step 4: Simplify right side
    264,130.80x = 65,184,021,676.08
  5. Step 5: Solve for x
    x = 65,184,021,676.08/264,130.80
  6. Step 6: Final answer
    x = 246,786.90

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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.