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Finding the Fourth Proportional to 200,622.61, 300,973.28 and 74,263.96

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Solution

The fourth proportional to 200,622.61, 300,973.28 and 74,263.96 is: 111,410.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,622.61 : 300,973.28 = 74,263.96 : x
  2. Step 2: Convert to fraction form
    200,622.61/300,973.28 = 74,263.96/x
  3. Step 3: Cross multiply
    200,622.61x = 300,973.28 × 74,263.96
  4. Step 4: Simplify right side
    200,622.61x = 22,351,467,626.99
  5. Step 5: Solve for x
    x = 22,351,467,626.99/200,622.61
  6. Step 6: Final answer
    x = 111,410.51

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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.