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Finding the Third Proportional to 56,872,978 and 122,506,430

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Solution

The third proportional to 56,872,978 and 122,506,430 is: 263,883,234.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,872,978 : 122,506,430 = 122,506,430 : x
  2. Step 2: Convert to fraction form
    56,872,978/122,506,430 = 122,506,430/x
  3. Step 3: Cross multiply
    56,872,978x = 122,506,430 × 122,506,430
  4. Step 4: Simplify right side
    56,872,978x = 15,007,825,391,344,900
  5. Step 5: Solve for x
    x = 15,007,825,391,344,900/56,872,978
  6. Step 6: Final answer
    x = 263,883,234.52

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