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Finding the Third Proportional to 187,912,516 and 287,484,666

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Solution

The third proportional to 187,912,516 and 287,484,666 is: 439,818,671.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,912,516 : 287,484,666 = 287,484,666 : x
  2. Step 2: Convert to fraction form
    187,912,516/287,484,666 = 287,484,666/x
  3. Step 3: Cross multiply
    187,912,516x = 287,484,666 × 287,484,666
  4. Step 4: Simplify right side
    187,912,516x = 82,647,433,185,131,552
  5. Step 5: Solve for x
    x = 82,647,433,185,131,552/187,912,516
  6. Step 6: Final answer
    x = 439,818,671.71

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.