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Finding the Fourth Proportional to 311,632.95, 467,528.27 and 86,993.22

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Solution

The fourth proportional to 311,632.95, 467,528.27 and 86,993.22 is: 130,511.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,632.95 : 467,528.27 = 86,993.22 : x
  2. Step 2: Convert to fraction form
    311,632.95/467,528.27 = 86,993.22/x
  3. Step 3: Cross multiply
    311,632.95x = 467,528.27 × 86,993.22
  4. Step 4: Simplify right side
    311,632.95x = 40,671,789,213.36
  5. Step 5: Solve for x
    x = 40,671,789,213.36/311,632.95
  6. Step 6: Final answer
    x = 130,511.84

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1.5x scale

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.