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Finding the Fourth Proportional to 347,337.96, 479,346.60 and 194,374.86

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Solution

The fourth proportional to 347,337.96, 479,346.60 and 194,374.86 is: 268,248.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,337.96 : 479,346.60 = 194,374.86 : x
  2. Step 2: Convert to fraction form
    347,337.96/479,346.60 = 194,374.86/x
  3. Step 3: Cross multiply
    347,337.96x = 479,346.60 × 194,374.86
  4. Step 4: Simplify right side
    347,337.96x = 93,172,928,266.48
  5. Step 5: Solve for x
    x = 93,172,928,266.48/347,337.96
  6. Step 6: Final answer
    x = 268,248.62

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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.