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Finding the Fourth Proportional to 294,379.86, 441,490.50 and 81,096.96

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Solution

The fourth proportional to 294,379.86, 441,490.50 and 81,096.96 is: 121,623.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,379.86 : 441,490.50 = 81,096.96 : x
  2. Step 2: Convert to fraction form
    294,379.86/441,490.50 = 81,096.96/x
  3. Step 3: Cross multiply
    294,379.86x = 441,490.50 × 81,096.96
  4. Step 4: Simplify right side
    294,379.86x = 35,803,537,418.88
  5. Step 5: Solve for x
    x = 35,803,537,418.88/294,379.86
  6. Step 6: Final answer
    x = 121,623.60

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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.