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Finding the Third Proportional to 128,335,962 and 277,129,654

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Solution

The third proportional to 128,335,962 and 277,129,654 is: 598,435,886.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,335,962 : 277,129,654 = 277,129,654 : x
  2. Step 2: Convert to fraction form
    128,335,962/277,129,654 = 277,129,654/x
  3. Step 3: Cross multiply
    128,335,962x = 277,129,654 × 277,129,654
  4. Step 4: Simplify right side
    128,335,962x = 76,800,845,126,159,712
  5. Step 5: Solve for x
    x = 76,800,845,126,159,712/128,335,962
  6. Step 6: Final answer
    x = 598,435,886.01

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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.