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Finding the Fourth Proportional to 70,186.68, 105,280.83 and 23,439.51

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Solution

The fourth proportional to 70,186.68, 105,280.83 and 23,439.51 is: 35,159.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,186.68 : 105,280.83 = 23,439.51 : x
  2. Step 2: Convert to fraction form
    70,186.68/105,280.83 = 23,439.51/x
  3. Step 3: Cross multiply
    70,186.68x = 105,280.83 × 23,439.51
  4. Step 4: Simplify right side
    70,186.68x = 2,467,731,067.59
  5. Step 5: Solve for x
    x = 2,467,731,067.59/70,186.68
  6. Step 6: Final answer
    x = 35,159.54

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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.