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Finding the Fourth Proportional to 202,936.74, 304,407.16 and 90,622.67

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Solution

The fourth proportional to 202,936.74, 304,407.16 and 90,622.67 is: 135,934.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,936.74 : 304,407.16 = 90,622.67 : x
  2. Step 2: Convert to fraction form
    202,936.74/304,407.16 = 90,622.67/x
  3. Step 3: Cross multiply
    202,936.74x = 304,407.16 × 90,622.67
  4. Step 4: Simplify right side
    202,936.74x = 27,586,190,935.91
  5. Step 5: Solve for x
    x = 27,586,190,935.91/202,936.74
  6. Step 6: Final answer
    x = 135,934.93

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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.