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Finding the Third Proportional to 67,482,189,678 and 145,120,216,866

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Solution

The third proportional to 67,482,189,678 and 145,120,216,866 is: 312,080,527,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,482,189,678 : 145,120,216,866 = 145,120,216,866 : x
  2. Step 2: Convert to fraction form
    67,482,189,678/145,120,216,866 = 145,120,216,866/x
  3. Step 3: Cross multiply
    67,482,189,678x = 145,120,216,866 × 145,120,216,866
  4. Step 4: Simplify right side
    67,482,189,678x = 21,059,877,343,234,871,001,088
  5. Step 5: Solve for x
    x = 21,059,877,343,234,871,001,088/67,482,189,678
  6. Step 6: Final answer
    x = 312,080,527,376.55

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Why These Related Problems?

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