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Finding the Fourth Proportional to 326,664.84, 490,059.18 and 113,424.42

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Solution

The fourth proportional to 326,664.84, 490,059.18 and 113,424.42 is: 170,158.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,664.84 : 490,059.18 = 113,424.42 : x
  2. Step 2: Convert to fraction form
    326,664.84/490,059.18 = 113,424.42/x
  3. Step 3: Cross multiply
    326,664.84x = 490,059.18 × 113,424.42
  4. Step 4: Simplify right side
    326,664.84x = 55,584,678,257.18
  5. Step 5: Solve for x
    x = 55,584,678,257.18/326,664.84
  6. Step 6: Final answer
    x = 170,158.13

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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.