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Finding the Fourth Proportional to 269,053.87, 403,440.60 and 100,435.51

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Solution

The fourth proportional to 269,053.87, 403,440.60 and 100,435.51 is: 150,600.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,053.87 : 403,440.60 = 100,435.51 : x
  2. Step 2: Convert to fraction form
    269,053.87/403,440.60 = 100,435.51/x
  3. Step 3: Cross multiply
    269,053.87x = 403,440.60 × 100,435.51
  4. Step 4: Simplify right side
    269,053.87x = 40,519,762,731.69
  5. Step 5: Solve for x
    x = 40,519,762,731.69/269,053.87
  6. Step 6: Final answer
    x = 150,600.93

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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.