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Finding the Fourth Proportional to 316,769.91, 437,147.43 and 173,520.49

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Solution

The fourth proportional to 316,769.91, 437,147.43 and 173,520.49 is: 239,461.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,769.91 : 437,147.43 = 173,520.49 : x
  2. Step 2: Convert to fraction form
    316,769.91/437,147.43 = 173,520.49/x
  3. Step 3: Cross multiply
    316,769.91x = 437,147.43 × 173,520.49
  4. Step 4: Simplify right side
    316,769.91x = 75,854,036,914.91
  5. Step 5: Solve for x
    x = 75,854,036,914.91/316,769.91
  6. Step 6: Final answer
    x = 239,461.00

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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.