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Finding the Third Proportional to 36,406,699 and 78,216,286

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Solution

The third proportional to 36,406,699 and 78,216,286 is: 168,040,156.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,406,699 : 78,216,286 = 78,216,286 : x
  2. Step 2: Convert to fraction form
    36,406,699/78,216,286 = 78,216,286/x
  3. Step 3: Cross multiply
    36,406,699x = 78,216,286 × 78,216,286
  4. Step 4: Simplify right side
    36,406,699x = 6,117,787,395,633,796
  5. Step 5: Solve for x
    x = 6,117,787,395,633,796/36,406,699
  6. Step 6: Final answer
    x = 168,040,156.45

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.