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Finding the Fourth Proportional to 268,161.53, 370,040.87 and 147,296.57

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Solution

The fourth proportional to 268,161.53, 370,040.87 and 147,296.57 is: 203,257.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,161.53 : 370,040.87 = 147,296.57 : x
  2. Step 2: Convert to fraction form
    268,161.53/370,040.87 = 147,296.57/x
  3. Step 3: Cross multiply
    268,161.53x = 370,040.87 × 147,296.57
  4. Step 4: Simplify right side
    268,161.53x = 54,505,748,324.13
  5. Step 5: Solve for x
    x = 54,505,748,324.13/268,161.53
  6. Step 6: Final answer
    x = 203,257.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.