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Finding the Fourth Proportional to 168,778.80, 252,946.74 and 124,196.80

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Solution

The fourth proportional to 168,778.80, 252,946.74 and 124,196.80 is: 186,132.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,778.80 : 252,946.74 = 124,196.80 : x
  2. Step 2: Convert to fraction form
    168,778.80/252,946.74 = 124,196.80/x
  3. Step 3: Cross multiply
    168,778.80x = 252,946.74 × 124,196.80
  4. Step 4: Simplify right side
    168,778.80x = 31,415,175,678.43
  5. Step 5: Solve for x
    x = 31,415,175,678.43/168,778.80
  6. Step 6: Final answer
    x = 186,132.24

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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.