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Finding the Third Proportional to 139,163,521 and 204,485,347

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Solution

The third proportional to 139,163,521 and 204,485,347 is: 300,468,519.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,163,521 : 204,485,347 = 204,485,347 : x
  2. Step 2: Convert to fraction form
    139,163,521/204,485,347 = 204,485,347/x
  3. Step 3: Cross multiply
    139,163,521x = 204,485,347 × 204,485,347
  4. Step 4: Simplify right side
    139,163,521x = 41,814,257,137,710,408
  5. Step 5: Solve for x
    x = 41,814,257,137,710,408/139,163,521
  6. Step 6: Final answer
    x = 300,468,519.60

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.