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Finding the Third Proportional to 190,356,336 and 256,835,391

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Solution

The third proportional to 190,356,336 and 256,835,391 is: 346,531,244.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,356,336 : 256,835,391 = 256,835,391 : x
  2. Step 2: Convert to fraction form
    190,356,336/256,835,391 = 256,835,391/x
  3. Step 3: Cross multiply
    190,356,336x = 256,835,391 × 256,835,391
  4. Step 4: Simplify right side
    190,356,336x = 65,964,418,070,122,880
  5. Step 5: Solve for x
    x = 65,964,418,070,122,880/190,356,336
  6. Step 6: Final answer
    x = 346,531,244.80

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.