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Finding the Fourth Proportional to 262,065.87, 393,186.29 and 104,251.95

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Solution

The fourth proportional to 262,065.87, 393,186.29 and 104,251.95 is: 156,412.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,065.87 : 393,186.29 = 104,251.95 : x
  2. Step 2: Convert to fraction form
    262,065.87/393,186.29 = 104,251.95/x
  3. Step 3: Cross multiply
    262,065.87x = 393,186.29 × 104,251.95
  4. Step 4: Simplify right side
    262,065.87x = 40,990,436,924.51
  5. Step 5: Solve for x
    x = 40,990,436,924.51/262,065.87
  6. Step 6: Final answer
    x = 156,412.73

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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.