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Finding the Fourth Proportional to 54,920.80, 82,316.40 and 41,053.60

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Solution

The fourth proportional to 54,920.80, 82,316.40 and 41,053.60 is: 61,531.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,920.80 : 82,316.40 = 41,053.60 : x
  2. Step 2: Convert to fraction form
    54,920.80/82,316.40 = 41,053.60/x
  3. Step 3: Cross multiply
    54,920.80x = 82,316.40 × 41,053.60
  4. Step 4: Simplify right side
    54,920.80x = 3,379,384,559.04
  5. Step 5: Solve for x
    x = 3,379,384,559.04/54,920.80
  6. Step 6: Final answer
    x = 61,531.96

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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.