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Finding the Third Proportional to 79,211,546 and 121,172,201

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Solution

The third proportional to 79,211,546 and 121,172,201 is: 185,360,632.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,211,546 : 121,172,201 = 121,172,201 : x
  2. Step 2: Convert to fraction form
    79,211,546/121,172,201 = 121,172,201/x
  3. Step 3: Cross multiply
    79,211,546x = 121,172,201 × 121,172,201
  4. Step 4: Simplify right side
    79,211,546x = 14,682,702,295,184,400
  5. Step 5: Solve for x
    x = 14,682,702,295,184,400/79,211,546
  6. Step 6: Final answer
    x = 185,360,632.84

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.