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Finding the Fourth Proportional to 481,476.71, 722,213.33 and 144,515.90

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Solution

The fourth proportional to 481,476.71, 722,213.33 and 144,515.90 is: 216,773.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,476.71 : 722,213.33 = 144,515.90 : x
  2. Step 2: Convert to fraction form
    481,476.71/722,213.33 = 144,515.90/x
  3. Step 3: Cross multiply
    481,476.71x = 722,213.33 × 144,515.90
  4. Step 4: Simplify right side
    481,476.71x = 104,371,309,376.95
  5. Step 5: Solve for x
    x = 104,371,309,376.95/481,476.71
  6. Step 6: Final answer
    x = 216,773.33

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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.