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Finding the Fourth Proportional to 141,924.87, 212,903.78 and 47,163.51

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Solution

The fourth proportional to 141,924.87, 212,903.78 and 47,163.51 is: 70,750.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,924.87 : 212,903.78 = 47,163.51 : x
  2. Step 2: Convert to fraction form
    141,924.87/212,903.78 = 47,163.51/x
  3. Step 3: Cross multiply
    141,924.87x = 212,903.78 × 47,163.51
  4. Step 4: Simplify right side
    141,924.87x = 10,041,289,321.25
  5. Step 5: Solve for x
    x = 10,041,289,321.25/141,924.87
  6. Step 6: Final answer
    x = 70,750.74

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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.