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Finding the Fourth Proportional to 49,744.80, 74,530.80 and 41,968.80

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Solution

The fourth proportional to 49,744.80, 74,530.80 and 41,968.80 is: 62,880.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,744.80 : 74,530.80 = 41,968.80 : x
  2. Step 2: Convert to fraction form
    49,744.80/74,530.80 = 41,968.80/x
  3. Step 3: Cross multiply
    49,744.80x = 74,530.80 × 41,968.80
  4. Step 4: Simplify right side
    49,744.80x = 3,127,968,239.04
  5. Step 5: Solve for x
    x = 3,127,968,239.04/49,744.80
  6. Step 6: Final answer
    x = 62,880.31

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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.