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Finding the Fourth Proportional to 79,362.27, 118,980.99 and 54,326.43

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Solution

The fourth proportional to 79,362.27, 118,980.99 and 54,326.43 is: 81,446.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,362.27 : 118,980.99 = 54,326.43 : x
  2. Step 2: Convert to fraction form
    79,362.27/118,980.99 = 54,326.43/x
  3. Step 3: Cross multiply
    79,362.27x = 118,980.99 × 54,326.43
  4. Step 4: Simplify right side
    79,362.27x = 6,463,812,424.57
  5. Step 5: Solve for x
    x = 6,463,812,424.57/79,362.27
  6. Step 6: Final answer
    x = 81,446.92

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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.