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Finding the Fourth Proportional to 320,694.93, 481,111.11 and 118,291.73

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Solution

The fourth proportional to 320,694.93, 481,111.11 and 118,291.73 is: 177,462.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,694.93 : 481,111.11 = 118,291.73 : x
  2. Step 2: Convert to fraction form
    320,694.93/481,111.11 = 118,291.73/x
  3. Step 3: Cross multiply
    320,694.93x = 481,111.11 × 118,291.73
  4. Step 4: Simplify right side
    320,694.93x = 56,911,463,118.56
  5. Step 5: Solve for x
    x = 56,911,463,118.56/320,694.93
  6. Step 6: Final answer
    x = 177,462.93

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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.