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Finding the Fourth Proportional to 203,914.70, 305,872.05 and 190,792.70

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Solution

The fourth proportional to 203,914.70, 305,872.05 and 190,792.70 is: 286,189.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,914.70 : 305,872.05 = 190,792.70 : x
  2. Step 2: Convert to fraction form
    203,914.70/305,872.05 = 190,792.70/x
  3. Step 3: Cross multiply
    203,914.70x = 305,872.05 × 190,792.70
  4. Step 4: Simplify right side
    203,914.70x = 58,358,154,274.04
  5. Step 5: Solve for x
    x = 58,358,154,274.04/203,914.70
  6. Step 6: Final answer
    x = 286,189.05

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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.