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Finding the Fourth Proportional to 268,614.60, 402,576.30 and 163,321.80

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Solution

The fourth proportional to 268,614.60, 402,576.30 and 163,321.80 is: 244,772.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,614.60 : 402,576.30 = 163,321.80 : x
  2. Step 2: Convert to fraction form
    268,614.60/402,576.30 = 163,321.80/x
  3. Step 3: Cross multiply
    268,614.60x = 402,576.30 × 163,321.80
  4. Step 4: Simplify right side
    268,614.60x = 65,749,485,953.34
  5. Step 5: Solve for x
    x = 65,749,485,953.34/268,614.60
  6. Step 6: Final answer
    x = 244,772.57

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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.