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Finding the Fourth Proportional to 481,682.57, 722,515.61 and 144,726.01

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Solution

The fourth proportional to 481,682.57, 722,515.61 and 144,726.01 is: 217,086.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,682.57 : 722,515.61 = 144,726.01 : x
  2. Step 2: Convert to fraction form
    481,682.57/722,515.61 = 144,726.01/x
  3. Step 3: Cross multiply
    481,682.57x = 722,515.61 × 144,726.01
  4. Step 4: Simplify right side
    481,682.57x = 104,566,799,953.54
  5. Step 5: Solve for x
    x = 104,566,799,953.54/481,682.57
  6. Step 6: Final answer
    x = 217,086.54

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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.