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Finding the Fourth Proportional to 54,418.80, 76,030.80 and 54,418.80

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Solution

The fourth proportional to 54,418.80, 76,030.80 and 54,418.80 is: 76,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,418.80 : 76,030.80 = 54,418.80 : x
  2. Step 2: Convert to fraction form
    54,418.80/76,030.80 = 54,418.80/x
  3. Step 3: Cross multiply
    54,418.80x = 76,030.80 × 54,418.80
  4. Step 4: Simplify right side
    54,418.80x = 4,137,504,899.04
  5. Step 5: Solve for x
    x = 4,137,504,899.04/54,418.80
  6. Step 6: Final answer
    x = 76,030.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.