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Finding the Fourth Proportional to 70,273.58, 105,241.47 and 40,196.64

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Solution

The fourth proportional to 70,273.58, 105,241.47 and 40,196.64 is: 60,198.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,273.58 : 105,241.47 = 40,196.64 : x
  2. Step 2: Convert to fraction form
    70,273.58/105,241.47 = 40,196.64/x
  3. Step 3: Cross multiply
    70,273.58x = 105,241.47 × 40,196.64
  4. Step 4: Simplify right side
    70,273.58x = 4,230,353,482.66
  5. Step 5: Solve for x
    x = 4,230,353,482.66/70,273.58
  6. Step 6: Final answer
    x = 60,198.35

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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.