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Finding the Third Proportional to 57,772,128 and 126,879,936

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Solution

The third proportional to 57,772,128 and 126,879,936 is: 278,655,447.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,772,128 : 126,879,936 = 126,879,936 : x
  2. Step 2: Convert to fraction form
    57,772,128/126,879,936 = 126,879,936/x
  3. Step 3: Cross multiply
    57,772,128x = 126,879,936 × 126,879,936
  4. Step 4: Simplify right side
    57,772,128x = 16,098,518,159,364,096
  5. Step 5: Solve for x
    x = 16,098,518,159,364,096/57,772,128
  6. Step 6: Final answer
    x = 278,655,447.13

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.