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Finding the Third Proportional to 124,390,982 and 256,730,956

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Solution

The third proportional to 124,390,982 and 256,730,956 is: 529,867,862.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,390,982 : 256,730,956 = 256,730,956 : x
  2. Step 2: Convert to fraction form
    124,390,982/256,730,956 = 256,730,956/x
  3. Step 3: Cross multiply
    124,390,982x = 256,730,956 × 256,730,956
  4. Step 4: Simplify right side
    124,390,982x = 65,910,783,768,673,936
  5. Step 5: Solve for x
    x = 65,910,783,768,673,936/124,390,982
  6. Step 6: Final answer
    x = 529,867,862.68

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.