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Finding the Third Proportional to 86,658,200 and 190,319,912

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Solution

The third proportional to 86,658,200 and 190,319,912 is: 417,983,167.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,658,200 : 190,319,912 = 190,319,912 : x
  2. Step 2: Convert to fraction form
    86,658,200/190,319,912 = 190,319,912/x
  3. Step 3: Cross multiply
    86,658,200x = 190,319,912 × 190,319,912
  4. Step 4: Simplify right side
    86,658,200x = 36,221,668,903,687,744
  5. Step 5: Solve for x
    x = 36,221,668,903,687,744/86,658,200
  6. Step 6: Final answer
    x = 417,983,167.24

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.