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Finding the Fourth Proportional to 494,925.89, 742,379.72 and 157,963.86

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Solution

The fourth proportional to 494,925.89, 742,379.72 and 157,963.86 is: 236,942.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,925.89 : 742,379.72 = 157,963.86 : x
  2. Step 2: Convert to fraction form
    494,925.89/742,379.72 = 157,963.86/x
  3. Step 3: Cross multiply
    494,925.89x = 742,379.72 × 157,963.86
  4. Step 4: Simplify right side
    494,925.89x = 117,269,165,367.10
  5. Step 5: Solve for x
    x = 117,269,165,367.10/494,925.89
  6. Step 6: Final answer
    x = 236,942.88

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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.