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Finding the Fourth Proportional to 311,859.30, 467,460.90 and 122,246.40

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Solution

The fourth proportional to 311,859.30, 467,460.90 and 122,246.40 is: 183,241.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,859.30 : 467,460.90 = 122,246.40 : x
  2. Step 2: Convert to fraction form
    311,859.30/467,460.90 = 122,246.40/x
  3. Step 3: Cross multiply
    311,859.30x = 467,460.90 × 122,246.40
  4. Step 4: Simplify right side
    311,859.30x = 57,145,412,165.76
  5. Step 5: Solve for x
    x = 57,145,412,165.76/311,859.30
  6. Step 6: Final answer
    x = 183,241.01

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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.