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Finding the Fourth Proportional to 203,075.70, 304,529.72 and 76,694.45

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Solution

The fourth proportional to 203,075.70, 304,529.72 and 76,694.45 is: 115,010.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,075.70 : 304,529.72 = 76,694.45 : x
  2. Step 2: Convert to fraction form
    203,075.70/304,529.72 = 76,694.45/x
  3. Step 3: Cross multiply
    203,075.70x = 304,529.72 × 76,694.45
  4. Step 4: Simplify right side
    203,075.70x = 23,355,737,477.93
  5. Step 5: Solve for x
    x = 23,355,737,477.93/203,075.70
  6. Step 6: Final answer
    x = 115,010.01

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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.