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Finding the Fourth Proportional to 303,181.78, 418,392.85 and 167,219.41

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Solution

The fourth proportional to 303,181.78, 418,392.85 and 167,219.41 is: 230,763.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,181.78 : 418,392.85 = 167,219.41 : x
  2. Step 2: Convert to fraction form
    303,181.78/418,392.85 = 167,219.41/x
  3. Step 3: Cross multiply
    303,181.78x = 418,392.85 × 167,219.41
  4. Step 4: Simplify right side
    303,181.78x = 69,963,405,525.22
  5. Step 5: Solve for x
    x = 69,963,405,525.22/303,181.78
  6. Step 6: Final answer
    x = 230,763.89

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1.5x scale

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.