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Finding the Third Proportional to 81,366,580.50 and 122,806,534.50

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Solution

The third proportional to 81,366,580.50 and 122,806,534.50 is: 185,351,833.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,366,580.50 : 122,806,534.50 = 122,806,534.50 : x
  2. Step 2: Convert to fraction form
    81,366,580.50/122,806,534.50 = 122,806,534.50/x
  3. Step 3: Cross multiply
    81,366,580.50x = 122,806,534.50 × 122,806,534.50
  4. Step 4: Simplify right side
    81,366,580.50x = 15,081,444,915,899,690
  5. Step 5: Solve for x
    x = 15,081,444,915,899,690/81,366,580.50
  6. Step 6: Final answer
    x = 185,351,833.93

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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.