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Finding the Fourth Proportional to 168,019.70, 252,053.55 and 49,675.70

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Solution

The fourth proportional to 168,019.70, 252,053.55 and 49,675.70 is: 74,520.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,019.70 : 252,053.55 = 49,675.70 : x
  2. Step 2: Convert to fraction form
    168,019.70/252,053.55 = 49,675.70/x
  3. Step 3: Cross multiply
    168,019.70x = 252,053.55 × 49,675.70
  4. Step 4: Simplify right side
    168,019.70x = 12,520,936,533.74
  5. Step 5: Solve for x
    x = 12,520,936,533.74/168,019.70
  6. Step 6: Final answer
    x = 74,520.65

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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.