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Finding the Third Proportional to 68,759.51 and 144,985.57

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Solution

The third proportional to 68,759.51 and 144,985.57 is: 305,715.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,759.51 : 144,985.57 = 144,985.57 : x
  2. Step 2: Convert to fraction form
    68,759.51/144,985.57 = 144,985.57/x
  3. Step 3: Cross multiply
    68,759.51x = 144,985.57 × 144,985.57
  4. Step 4: Simplify right side
    68,759.51x = 21,020,815,598.84
  5. Step 5: Solve for x
    x = 21,020,815,598.84/68,759.51
  6. Step 6: Final answer
    x = 305,715.04

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These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.