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Finding the Fourth Proportional to 168,009.40, 252,014.10 and 43,350.40

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Solution

The fourth proportional to 168,009.40, 252,014.10 and 43,350.40 is: 65,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,009.40 : 252,014.10 = 43,350.40 : x
  2. Step 2: Convert to fraction form
    168,009.40/252,014.10 = 43,350.40/x
  3. Step 3: Cross multiply
    168,009.40x = 252,014.10 × 43,350.40
  4. Step 4: Simplify right side
    168,009.40x = 10,924,912,040.64
  5. Step 5: Solve for x
    x = 10,924,912,040.64/168,009.40
  6. Step 6: Final answer
    x = 65,025.60

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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.