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Finding the Fourth Proportional to 168,019.42, 252,078.36 and 49,693.90

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Solution

The fourth proportional to 168,019.42, 252,078.36 and 49,693.90 is: 74,555.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,019.42 : 252,078.36 = 49,693.90 : x
  2. Step 2: Convert to fraction form
    168,019.42/252,078.36 = 49,693.90/x
  3. Step 3: Cross multiply
    168,019.42x = 252,078.36 × 49,693.90
  4. Step 4: Simplify right side
    168,019.42x = 12,526,756,814.00
  5. Step 5: Solve for x
    x = 12,526,756,814.00/168,019.42
  6. Step 6: Final answer
    x = 74,555.41

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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.