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Finding the Third Proportional to 186,856,942.50 and 408,903,859.13

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Solution

The third proportional to 186,856,942.50 and 408,903,859.13 is: 894,814,844.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,856,942.50 : 408,903,859.13 = 408,903,859.13 : x
  2. Step 2: Convert to fraction form
    186,856,942.50/408,903,859.13 = 408,903,859.13/x
  3. Step 3: Cross multiply
    186,856,942.50x = 408,903,859.13 × 408,903,859.13
  4. Step 4: Simplify right side
    186,856,942.50x = 167,202,366,007,317,856
  5. Step 5: Solve for x
    x = 167,202,366,007,317,856/186,856,942.50
  6. Step 6: Final answer
    x = 894,814,844.82

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.