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Finding the Fourth Proportional to 270,698.40, 405,799.92 and 104,361.12

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Solution

The fourth proportional to 270,698.40, 405,799.92 and 104,361.12 is: 156,446.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,698.40 : 405,799.92 = 104,361.12 : x
  2. Step 2: Convert to fraction form
    270,698.40/405,799.92 = 104,361.12/x
  3. Step 3: Cross multiply
    270,698.40x = 405,799.92 × 104,361.12
  4. Step 4: Simplify right side
    270,698.40x = 42,349,734,147.11
  5. Step 5: Solve for x
    x = 42,349,734,147.11/270,698.40
  6. Step 6: Final answer
    x = 156,446.19

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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.