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Finding the Fourth Proportional to 203,254.16, 304,758.11 and 90,913.44

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Solution

The fourth proportional to 203,254.16, 304,758.11 and 90,913.44 is: 136,315.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,254.16 : 304,758.11 = 90,913.44 : x
  2. Step 2: Convert to fraction form
    203,254.16/304,758.11 = 90,913.44/x
  3. Step 3: Cross multiply
    203,254.16x = 304,758.11 × 90,913.44
  4. Step 4: Simplify right side
    203,254.16x = 27,706,608,148.00
  5. Step 5: Solve for x
    x = 27,706,608,148.00/203,254.16
  6. Step 6: Final answer
    x = 136,315.09

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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.