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Finding the Fourth Proportional to 200,792.99, 301,128.06 and 67,637.54

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Solution

The fourth proportional to 200,792.99, 301,128.06 and 67,637.54 is: 101,435.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,792.99 : 301,128.06 = 67,637.54 : x
  2. Step 2: Convert to fraction form
    200,792.99/301,128.06 = 67,637.54/x
  3. Step 3: Cross multiply
    200,792.99x = 301,128.06 × 67,637.54
  4. Step 4: Simplify right side
    200,792.99x = 20,367,561,203.37
  5. Step 5: Solve for x
    x = 20,367,561,203.37/200,792.99
  6. Step 6: Final answer
    x = 101,435.62

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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.