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Finding the Fourth Proportional to 321,312.70, 481,882.65 and 96,672.70

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Solution

The fourth proportional to 321,312.70, 481,882.65 and 96,672.70 is: 144,983.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,312.70 : 481,882.65 = 96,672.70 : x
  2. Step 2: Convert to fraction form
    321,312.70/481,882.65 = 96,672.70/x
  3. Step 3: Cross multiply
    321,312.70x = 481,882.65 × 96,672.70
  4. Step 4: Simplify right side
    321,312.70x = 46,584,896,858.66
  5. Step 5: Solve for x
    x = 46,584,896,858.66/321,312.70
  6. Step 6: Final answer
    x = 144,983.06

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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.