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Finding the Third Proportional to 71,431,076 and 155,039,364

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Solution

The third proportional to 71,431,076 and 155,039,364 is: 336,509,062.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,431,076 : 155,039,364 = 155,039,364 : x
  2. Step 2: Convert to fraction form
    71,431,076/155,039,364 = 155,039,364/x
  3. Step 3: Cross multiply
    71,431,076x = 155,039,364 × 155,039,364
  4. Step 4: Simplify right side
    71,431,076x = 24,037,204,389,524,496
  5. Step 5: Solve for x
    x = 24,037,204,389,524,496/71,431,076
  6. Step 6: Final answer
    x = 336,509,062.10

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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.