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Finding the Fourth Proportional to 248,885.38, 373,346.79 and 71,390.98

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Solution

The fourth proportional to 248,885.38, 373,346.79 and 71,390.98 is: 107,091.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,885.38 : 373,346.79 = 71,390.98 : x
  2. Step 2: Convert to fraction form
    248,885.38/373,346.79 = 71,390.98/x
  3. Step 3: Cross multiply
    248,885.38x = 373,346.79 × 71,390.98
  4. Step 4: Simplify right side
    248,885.38x = 26,653,593,217.95
  5. Step 5: Solve for x
    x = 26,653,593,217.95/248,885.38
  6. Step 6: Final answer
    x = 107,091.84

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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.