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Finding the Third Proportional to 187,172,748 and 403,940,120

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Solution

The third proportional to 187,172,748 and 403,940,120 is: 871,748,811.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,172,748 : 403,940,120 = 403,940,120 : x
  2. Step 2: Convert to fraction form
    187,172,748/403,940,120 = 403,940,120/x
  3. Step 3: Cross multiply
    187,172,748x = 403,940,120 × 403,940,120
  4. Step 4: Simplify right side
    187,172,748x = 163,167,620,545,614,400
  5. Step 5: Solve for x
    x = 163,167,620,545,614,400/187,172,748
  6. Step 6: Final answer
    x = 871,748,811.13

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.