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Finding the Third Proportional to 123,678,065 and 257,529,373

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Solution

The third proportional to 123,678,065 and 257,529,373 is: 536,242,040.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,678,065 : 257,529,373 = 257,529,373 : x
  2. Step 2: Convert to fraction form
    123,678,065/257,529,373 = 257,529,373/x
  3. Step 3: Cross multiply
    123,678,065x = 257,529,373 × 257,529,373
  4. Step 4: Simplify right side
    123,678,065x = 66,321,377,957,773,128
  5. Step 5: Solve for x
    x = 66,321,377,957,773,128/123,678,065
  6. Step 6: Final answer
    x = 536,242,040.64

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.