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Finding the Fourth Proportional to 311,464.70, 467,715.45 and 171,323.90

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Solution

The fourth proportional to 311,464.70, 467,715.45 and 171,323.90 is: 257,271.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,464.70 : 467,715.45 = 171,323.90 : x
  2. Step 2: Convert to fraction form
    311,464.70/467,715.45 = 171,323.90/x
  3. Step 3: Cross multiply
    311,464.70x = 467,715.45 × 171,323.90
  4. Step 4: Simplify right side
    311,464.70x = 80,130,834,984.26
  5. Step 5: Solve for x
    x = 80,130,834,984.26/311,464.70
  6. Step 6: Final answer
    x = 257,271.00

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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.