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Finding the Third Proportional to 55,292,391 and 122,857,038

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Solution

The third proportional to 55,292,391 and 122,857,038 is: 272,982,439.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,292,391 : 122,857,038 = 122,857,038 : x
  2. Step 2: Convert to fraction form
    55,292,391/122,857,038 = 122,857,038/x
  3. Step 3: Cross multiply
    55,292,391x = 122,857,038 × 122,857,038
  4. Step 4: Simplify right side
    55,292,391x = 15,093,851,786,133,444
  5. Step 5: Solve for x
    x = 15,093,851,786,133,444/55,292,391
  6. Step 6: Final answer
    x = 272,982,439.59

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.