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Finding the Third Proportional to 134,902,388 and 290,265,216

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Solution

The third proportional to 134,902,388 and 290,265,216 is: 624,554,515.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,902,388 : 290,265,216 = 290,265,216 : x
  2. Step 2: Convert to fraction form
    134,902,388/290,265,216 = 290,265,216/x
  3. Step 3: Cross multiply
    134,902,388x = 290,265,216 × 290,265,216
  4. Step 4: Simplify right side
    134,902,388x = 84,253,895,619,526,656
  5. Step 5: Solve for x
    x = 84,253,895,619,526,656/134,902,388
  6. Step 6: Final answer
    x = 624,554,515.81

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.