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Finding the Fourth Proportional to 298,391.25, 447,582.46 and 73,751.70

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Solution

The fourth proportional to 298,391.25, 447,582.46 and 73,751.70 is: 110,626.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,391.25 : 447,582.46 = 73,751.70 : x
  2. Step 2: Convert to fraction form
    298,391.25/447,582.46 = 73,751.70/x
  3. Step 3: Cross multiply
    298,391.25x = 447,582.46 × 73,751.70
  4. Step 4: Simplify right side
    298,391.25x = 33,009,967,315.18
  5. Step 5: Solve for x
    x = 33,009,967,315.18/298,391.25
  6. Step 6: Final answer
    x = 110,626.46

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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.