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Finding the Third Proportional to 117,976,520 and 245,370,640

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Solution

The third proportional to 117,976,520 and 245,370,640 is: 510,328,249.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,976,520 : 245,370,640 = 245,370,640 : x
  2. Step 2: Convert to fraction form
    117,976,520/245,370,640 = 245,370,640/x
  3. Step 3: Cross multiply
    117,976,520x = 245,370,640 × 245,370,640
  4. Step 4: Simplify right side
    117,976,520x = 60,206,750,974,009,600
  5. Step 5: Solve for x
    x = 60,206,750,974,009,600/117,976,520
  6. Step 6: Final answer
    x = 510,328,249.84

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.