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Finding the Third Proportional to 109,986,079 and 238,889,178

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Solution

The third proportional to 109,986,079 and 238,889,178 is: 518,866,022.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,986,079 : 238,889,178 = 238,889,178 : x
  2. Step 2: Convert to fraction form
    109,986,079/238,889,178 = 238,889,178/x
  3. Step 3: Cross multiply
    109,986,079x = 238,889,178 × 238,889,178
  4. Step 4: Simplify right side
    109,986,079x = 57,068,039,365,515,680
  5. Step 5: Solve for x
    x = 57,068,039,365,515,680/109,986,079
  6. Step 6: Final answer
    x = 518,866,022.72

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.