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Finding the Fourth Proportional to 380,161.32, 570,438.54 and 167,078.73

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Solution

The fourth proportional to 380,161.32, 570,438.54 and 167,078.73 is: 250,704.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,161.32 : 570,438.54 = 167,078.73 : x
  2. Step 2: Convert to fraction form
    380,161.32/570,438.54 = 167,078.73/x
  3. Step 3: Cross multiply
    380,161.32x = 570,438.54 × 167,078.73
  4. Step 4: Simplify right side
    380,161.32x = 95,308,146,806.25
  5. Step 5: Solve for x
    x = 95,308,146,806.25/380,161.32
  6. Step 6: Final answer
    x = 250,704.48

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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.