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Finding the Fourth Proportional to 293,457.20, 440,185.80 and 194,961.20

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Solution

The fourth proportional to 293,457.20, 440,185.80 and 194,961.20 is: 292,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,457.20 : 440,185.80 = 194,961.20 : x
  2. Step 2: Convert to fraction form
    293,457.20/440,185.80 = 194,961.20/x
  3. Step 3: Cross multiply
    293,457.20x = 440,185.80 × 194,961.20
  4. Step 4: Simplify right side
    293,457.20x = 85,819,151,790.96
  5. Step 5: Solve for x
    x = 85,819,151,790.96/293,457.20
  6. Step 6: Final answer
    x = 292,441.80

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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.