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Finding the Fourth Proportional to 168,004.98, 252,056.70 and 49,679.40

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Solution

The fourth proportional to 168,004.98, 252,056.70 and 49,679.40 is: 74,533.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,004.98 : 252,056.70 = 49,679.40 : x
  2. Step 2: Convert to fraction form
    168,004.98/252,056.70 = 49,679.40/x
  3. Step 3: Cross multiply
    168,004.98x = 252,056.70 × 49,679.40
  4. Step 4: Simplify right side
    168,004.98x = 12,522,025,621.98
  5. Step 5: Solve for x
    x = 12,522,025,621.98/168,004.98
  6. Step 6: Final answer
    x = 74,533.66

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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.