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Finding the Fourth Proportional to 298,786.08, 412,143.48 and 177,846.60

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Solution

The fourth proportional to 298,786.08, 412,143.48 and 177,846.60 is: 245,320.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,786.08 : 412,143.48 = 177,846.60 : x
  2. Step 2: Convert to fraction form
    298,786.08/412,143.48 = 177,846.60/x
  3. Step 3: Cross multiply
    298,786.08x = 412,143.48 × 177,846.60
  4. Step 4: Simplify right side
    298,786.08x = 73,298,316,630.17
  5. Step 5: Solve for x
    x = 73,298,316,630.17/298,786.08
  6. Step 6: Final answer
    x = 245,320.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.