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Finding the Fourth Proportional to 168,210.40, 252,607.20 and 162,961.60

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Solution

The fourth proportional to 168,210.40, 252,607.20 and 162,961.60 is: 244,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,210.40 : 252,607.20 = 162,961.60 : x
  2. Step 2: Convert to fraction form
    168,210.40/252,607.20 = 162,961.60/x
  3. Step 3: Cross multiply
    168,210.40x = 252,607.20 × 162,961.60
  4. Step 4: Simplify right side
    168,210.40x = 41,165,273,483.52
  5. Step 5: Solve for x
    x = 41,165,273,483.52/168,210.40
  6. Step 6: Final answer
    x = 244,724.90

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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.