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Finding the Third Proportional to 117,926,980 and 255,170,408

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Solution

The third proportional to 117,926,980 and 255,170,408 is: 552,137,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,926,980 : 255,170,408 = 255,170,408 : x
  2. Step 2: Convert to fraction form
    117,926,980/255,170,408 = 255,170,408/x
  3. Step 3: Cross multiply
    117,926,980x = 255,170,408 × 255,170,408
  4. Step 4: Simplify right side
    117,926,980x = 65,111,937,118,886,464
  5. Step 5: Solve for x
    x = 65,111,937,118,886,464/117,926,980
  6. Step 6: Final answer
    x = 552,137,747.60

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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.