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Finding the Third Proportional to 187,980,599 and 287,373,904

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Solution

The third proportional to 187,980,599 and 287,373,904 is: 439,320,659.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,980,599 : 287,373,904 = 287,373,904 : x
  2. Step 2: Convert to fraction form
    187,980,599/287,373,904 = 287,373,904/x
  3. Step 3: Cross multiply
    187,980,599x = 287,373,904 × 287,373,904
  4. Step 4: Simplify right side
    187,980,599x = 82,583,760,700,201,216
  5. Step 5: Solve for x
    x = 82,583,760,700,201,216/187,980,599
  6. Step 6: Final answer
    x = 439,320,659.36

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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.