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Finding the Fourth Proportional to 194,481.40, 291,722.10 and 163,377.40

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Solution

The fourth proportional to 194,481.40, 291,722.10 and 163,377.40 is: 245,066.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,481.40 : 291,722.10 = 163,377.40 : x
  2. Step 2: Convert to fraction form
    194,481.40/291,722.10 = 163,377.40/x
  3. Step 3: Cross multiply
    194,481.40x = 291,722.10 × 163,377.40
  4. Step 4: Simplify right side
    194,481.40x = 47,660,798,220.54
  5. Step 5: Solve for x
    x = 47,660,798,220.54/194,481.40
  6. Step 6: Final answer
    x = 245,066.10

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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.