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Finding the Third Proportional to 187,518,456 and 403,838,190

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Solution

The third proportional to 187,518,456 and 403,838,190 is: 869,702,573.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,518,456 : 403,838,190 = 403,838,190 : x
  2. Step 2: Convert to fraction form
    187,518,456/403,838,190 = 403,838,190/x
  3. Step 3: Cross multiply
    187,518,456x = 403,838,190 × 403,838,190
  4. Step 4: Simplify right side
    187,518,456x = 163,085,283,702,476,096
  5. Step 5: Solve for x
    x = 163,085,283,702,476,096/187,518,456
  6. Step 6: Final answer
    x = 869,702,573.18

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.