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Finding the Third Proportional to 36,361,115 and 78,490,988

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Solution

The third proportional to 36,361,115 and 78,490,988 is: 169,434,716.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,361,115 : 78,490,988 = 78,490,988 : x
  2. Step 2: Convert to fraction form
    36,361,115/78,490,988 = 78,490,988/x
  3. Step 3: Cross multiply
    36,361,115x = 78,490,988 × 78,490,988
  4. Step 4: Simplify right side
    36,361,115x = 6,160,835,197,216,144
  5. Step 5: Solve for x
    x = 6,160,835,197,216,144/36,361,115
  6. Step 6: Final answer
    x = 169,434,716.10

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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.