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Finding the Fourth Proportional to 262,174.44, 393,270.36 and 72,636.71

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Solution

The fourth proportional to 262,174.44, 393,270.36 and 72,636.71 is: 108,957.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,174.44 : 393,270.36 = 72,636.71 : x
  2. Step 2: Convert to fraction form
    262,174.44/393,270.36 = 72,636.71/x
  3. Step 3: Cross multiply
    262,174.44x = 393,270.36 × 72,636.71
  4. Step 4: Simplify right side
    262,174.44x = 28,565,865,090.92
  5. Step 5: Solve for x
    x = 28,565,865,090.92/262,174.44
  6. Step 6: Final answer
    x = 108,957.48

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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.