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Finding the Fourth Proportional to 168,873.73, 253,305.73 and 42,513.73

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Solution

The fourth proportional to 168,873.73, 253,305.73 and 42,513.73 is: 63,769.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,873.73 : 253,305.73 = 42,513.73 : x
  2. Step 2: Convert to fraction form
    168,873.73/253,305.73 = 42,513.73/x
  3. Step 3: Cross multiply
    168,873.73x = 253,305.73 × 42,513.73
  4. Step 4: Simplify right side
    168,873.73x = 10,768,971,412.67
  5. Step 5: Solve for x
    x = 10,768,971,412.67/168,873.73
  6. Step 6: Final answer
    x = 63,769.37

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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.