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Finding the Fourth Proportional to 168,108.40, 252,454.20 and 162,859.60

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Solution

The fourth proportional to 168,108.40, 252,454.20 and 162,859.60 is: 244,571.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,108.40 : 252,454.20 = 162,859.60 : x
  2. Step 2: Convert to fraction form
    168,108.40/252,454.20 = 162,859.60/x
  3. Step 3: Cross multiply
    168,108.40x = 252,454.20 × 162,859.60
  4. Step 4: Simplify right side
    168,108.40x = 41,114,590,030.32
  5. Step 5: Solve for x
    x = 41,114,590,030.32/168,108.40
  6. Step 6: Final answer
    x = 244,571.90

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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.