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Finding the Fourth Proportional to 316,467.57, 474,531.12 and 126,832.80

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Solution

The fourth proportional to 316,467.57, 474,531.12 and 126,832.80 is: 190,180.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,467.57 : 474,531.12 = 126,832.80 : x
  2. Step 2: Convert to fraction form
    316,467.57/474,531.12 = 126,832.80/x
  3. Step 3: Cross multiply
    316,467.57x = 474,531.12 × 126,832.80
  4. Step 4: Simplify right side
    316,467.57x = 60,186,110,636.74
  5. Step 5: Solve for x
    x = 60,186,110,636.74/316,467.57
  6. Step 6: Final answer
    x = 190,180.97

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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.