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Finding the Fourth Proportional to 368,189.94, 552,291.75 and 115,464.81

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Solution

The fourth proportional to 368,189.94, 552,291.75 and 115,464.81 is: 173,199.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,189.94 : 552,291.75 = 115,464.81 : x
  2. Step 2: Convert to fraction form
    368,189.94/552,291.75 = 115,464.81/x
  3. Step 3: Cross multiply
    368,189.94x = 552,291.75 × 115,464.81
  4. Step 4: Simplify right side
    368,189.94x = 63,770,261,978.32
  5. Step 5: Solve for x
    x = 63,770,261,978.32/368,189.94
  6. Step 6: Final answer
    x = 173,199.36

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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.