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Finding the Fourth Proportional to 286,485.37, 429,137.56 and 167,796.88

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Solution

The fourth proportional to 286,485.37, 429,137.56 and 167,796.88 is: 251,349.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,485.37 : 429,137.56 = 167,796.88 : x
  2. Step 2: Convert to fraction form
    286,485.37/429,137.56 = 167,796.88/x
  3. Step 3: Cross multiply
    286,485.37x = 429,137.56 × 167,796.88
  4. Step 4: Simplify right side
    286,485.37x = 72,007,942,795.72
  5. Step 5: Solve for x
    x = 72,007,942,795.72/286,485.37
  6. Step 6: Final answer
    x = 251,349.46

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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.