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Finding the Fourth Proportional to 347,788.80, 521,391.60 and 181,576.80

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Solution

The fourth proportional to 347,788.80, 521,391.60 and 181,576.80 is: 272,212.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,788.80 : 521,391.60 = 181,576.80 : x
  2. Step 2: Convert to fraction form
    347,788.80/521,391.60 = 181,576.80/x
  3. Step 3: Cross multiply
    347,788.80x = 521,391.60 × 181,576.80
  4. Step 4: Simplify right side
    347,788.80x = 94,672,618,274.88
  5. Step 5: Solve for x
    x = 94,672,618,274.88/347,788.80
  6. Step 6: Final answer
    x = 272,212.96

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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.