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Finding the Fourth Proportional to 168,789.64, 253,106.16 and 62,146.48

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Solution

The fourth proportional to 168,789.64, 253,106.16 and 62,146.48 is: 93,190.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,789.64 : 253,106.16 = 62,146.48 : x
  2. Step 2: Convert to fraction form
    168,789.64/253,106.16 = 62,146.48/x
  3. Step 3: Cross multiply
    168,789.64x = 253,106.16 × 62,146.48
  4. Step 4: Simplify right side
    168,789.64x = 15,729,656,910.32
  5. Step 5: Solve for x
    x = 15,729,656,910.32/168,789.64
  6. Step 6: Final answer
    x = 93,190.89

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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.