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Finding the Third Proportional to 118,690,438 and 253,058,264

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Solution

The third proportional to 118,690,438 and 253,058,264 is: 539,542,073.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,690,438 : 253,058,264 = 253,058,264 : x
  2. Step 2: Convert to fraction form
    118,690,438/253,058,264 = 253,058,264/x
  3. Step 3: Cross multiply
    118,690,438x = 253,058,264 × 253,058,264
  4. Step 4: Simplify right side
    118,690,438x = 64,038,484,978,693,696
  5. Step 5: Solve for x
    x = 64,038,484,978,693,696/118,690,438
  6. Step 6: Final answer
    x = 539,542,073.13

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.