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Finding the Third Proportional to 81,366,569.72 and 122,806,519.03

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Solution

The third proportional to 81,366,569.72 and 122,806,519.03 is: 185,351,811.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,366,569.72 : 122,806,519.03 = 122,806,519.03 : x
  2. Step 2: Convert to fraction form
    81,366,569.72/122,806,519.03 = 122,806,519.03/x
  3. Step 3: Cross multiply
    81,366,569.72x = 122,806,519.03 × 122,806,519.03
  4. Step 4: Simplify right side
    81,366,569.72x = 15,081,441,116,572,768
  5. Step 5: Solve for x
    x = 15,081,441,116,572,768/81,366,569.72
  6. Step 6: Final answer
    x = 185,351,811.79

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.