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Finding the Fourth Proportional to 303,138.42, 454,742.73 and 100,752.60

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Solution

The fourth proportional to 303,138.42, 454,742.73 and 100,752.60 is: 151,140.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,138.42 : 454,742.73 = 100,752.60 : x
  2. Step 2: Convert to fraction form
    303,138.42/454,742.73 = 100,752.60/x
  3. Step 3: Cross multiply
    303,138.42x = 454,742.73 × 100,752.60
  4. Step 4: Simplify right side
    303,138.42x = 45,816,512,378.60
  5. Step 5: Solve for x
    x = 45,816,512,378.60/303,138.42
  6. Step 6: Final answer
    x = 151,140.57

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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.