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Finding the Fourth Proportional to 262,172.44, 393,267.36 and 72,634.71

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Solution

The fourth proportional to 262,172.44, 393,267.36 and 72,634.71 is: 108,954.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,172.44 : 393,267.36 = 72,634.71 : x
  2. Step 2: Convert to fraction form
    262,172.44/393,267.36 = 72,634.71/x
  3. Step 3: Cross multiply
    262,172.44x = 393,267.36 × 72,634.71
  4. Step 4: Simplify right side
    262,172.44x = 28,564,860,646.07
  5. Step 5: Solve for x
    x = 28,564,860,646.07/262,172.44
  6. Step 6: Final answer
    x = 108,954.48

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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.