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Finding the Third Proportional to 143,047,606.50 and 308,963,571.75

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Solution

The third proportional to 143,047,606.50 and 308,963,571.75 is: 667,319,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,047,606.50 : 308,963,571.75 = 308,963,571.75 : x
  2. Step 2: Convert to fraction form
    143,047,606.50/308,963,571.75 = 308,963,571.75/x
  3. Step 3: Cross multiply
    143,047,606.50x = 308,963,571.75 × 308,963,571.75
  4. Step 4: Simplify right side
    143,047,606.50x = 95,458,488,668,517,392
  5. Step 5: Solve for x
    x = 95,458,488,668,517,392/143,047,606.50
  6. Step 6: Final answer
    x = 667,319,719.67

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.