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Finding the Third Proportional to 76,118,890 and 115,962,820

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Solution

The third proportional to 76,118,890 and 115,962,820 is: 176,662,791.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,118,890 : 115,962,820 = 115,962,820 : x
  2. Step 2: Convert to fraction form
    76,118,890/115,962,820 = 115,962,820/x
  3. Step 3: Cross multiply
    76,118,890x = 115,962,820 × 115,962,820
  4. Step 4: Simplify right side
    76,118,890x = 13,447,375,622,352,400
  5. Step 5: Solve for x
    x = 13,447,375,622,352,400/76,118,890
  6. Step 6: Final answer
    x = 176,662,791.88

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.