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Finding the Third Proportional to 153,694,786 and 331,929,385

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Solution

The third proportional to 153,694,786 and 331,929,385 is: 716,856,566.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,694,786 : 331,929,385 = 331,929,385 : x
  2. Step 2: Convert to fraction form
    153,694,786/331,929,385 = 331,929,385/x
  3. Step 3: Cross multiply
    153,694,786x = 331,929,385 × 331,929,385
  4. Step 4: Simplify right side
    153,694,786x = 110,177,116,626,478,224
  5. Step 5: Solve for x
    x = 110,177,116,626,478,224/153,694,786
  6. Step 6: Final answer
    x = 716,856,566.80

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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.