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Finding the Fourth Proportional to 207,626.70, 311,440.05 and 203,690.10

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Solution

The fourth proportional to 207,626.70, 311,440.05 and 203,690.10 is: 305,535.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,626.70 : 311,440.05 = 203,690.10 : x
  2. Step 2: Convert to fraction form
    207,626.70/311,440.05 = 203,690.10/x
  3. Step 3: Cross multiply
    207,626.70x = 311,440.05 × 203,690.10
  4. Step 4: Simplify right side
    207,626.70x = 63,437,254,928.51
  5. Step 5: Solve for x
    x = 63,437,254,928.51/207,626.70
  6. Step 6: Final answer
    x = 305,535.15

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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.