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Finding the Fourth Proportional to 347,654.30, 521,562.82 and 107,755.67

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Solution

The fourth proportional to 347,654.30, 521,562.82 and 107,755.67 is: 161,658.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,654.30 : 521,562.82 = 107,755.67 : x
  2. Step 2: Convert to fraction form
    347,654.30/521,562.82 = 107,755.67/x
  3. Step 3: Cross multiply
    347,654.30x = 521,562.82 × 107,755.67
  4. Step 4: Simplify right side
    347,654.30x = 56,201,351,116.19
  5. Step 5: Solve for x
    x = 56,201,351,116.19/347,654.30
  6. Step 6: Final answer
    x = 161,658.73

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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.