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Finding the Third Proportional to 187,980,606 and 287,373,915

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Solution

The third proportional to 187,980,606 and 287,373,915 is: 439,320,676.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,980,606 : 287,373,915 = 287,373,915 : x
  2. Step 2: Convert to fraction form
    187,980,606/287,373,915 = 287,373,915/x
  3. Step 3: Cross multiply
    187,980,606x = 287,373,915 × 287,373,915
  4. Step 4: Simplify right side
    187,980,606x = 82,583,767,022,427,232
  5. Step 5: Solve for x
    x = 82,583,767,022,427,232/187,980,606
  6. Step 6: Final answer
    x = 439,320,676.64

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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.