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Finding the Fourth Proportional to 74,242.94, 111,347.42 and 44,265.65

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Solution

The fourth proportional to 74,242.94, 111,347.42 and 44,265.65 is: 66,388.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,242.94 : 111,347.42 = 44,265.65 : x
  2. Step 2: Convert to fraction form
    74,242.94/111,347.42 = 44,265.65/x
  3. Step 3: Cross multiply
    74,242.94x = 111,347.42 × 44,265.65
  4. Step 4: Simplify right side
    74,242.94x = 4,928,865,144.06
  5. Step 5: Solve for x
    x = 4,928,865,144.06/74,242.94
  6. Step 6: Final answer
    x = 66,388.34

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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.