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Finding the Fourth Proportional to 267,028, 368,504.40 and 147,796

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Solution

The fourth proportional to 267,028, 368,504.40 and 147,796 is: 203,961.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,028 : 368,504.40 = 147,796 : x
  2. Step 2: Convert to fraction form
    267,028/368,504.40 = 147,796/x
  3. Step 3: Cross multiply
    267,028x = 368,504.40 × 147,796
  4. Step 4: Simplify right side
    267,028x = 54,463,476,302.40
  5. Step 5: Solve for x
    x = 54,463,476,302.40/267,028
  6. Step 6: Final answer
    x = 203,961.67

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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.