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Finding the Fourth Proportional to 136,705.51, 204,936.22 and 73,559.53

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Solution

The fourth proportional to 136,705.51, 204,936.22 and 73,559.53 is: 110,273.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,705.51 : 204,936.22 = 73,559.53 : x
  2. Step 2: Convert to fraction form
    136,705.51/204,936.22 = 73,559.53/x
  3. Step 3: Cross multiply
    136,705.51x = 204,936.22 × 73,559.53
  4. Step 4: Simplify right side
    136,705.51x = 15,075,012,023.18
  5. Step 5: Solve for x
    x = 15,075,012,023.18/136,705.51
  6. Step 6: Final answer
    x = 110,273.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.