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Finding the Fourth Proportional to 318,497.40, 439,527.89 and 182,539.37

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Solution

The fourth proportional to 318,497.40, 439,527.89 and 182,539.37 is: 251,905.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,497.40 : 439,527.89 = 182,539.37 : x
  2. Step 2: Convert to fraction form
    318,497.40/439,527.89 = 182,539.37/x
  3. Step 3: Cross multiply
    318,497.40x = 439,527.89 × 182,539.37
  4. Step 4: Simplify right side
    318,497.40x = 80,231,145,693.20
  5. Step 5: Solve for x
    x = 80,231,145,693.20/318,497.40
  6. Step 6: Final answer
    x = 251,905.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.