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Finding the Fourth Proportional to 481,151.88, 721,685.70 and 144,267.75

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Solution

The fourth proportional to 481,151.88, 721,685.70 and 144,267.75 is: 216,389.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,151.88 : 721,685.70 = 144,267.75 : x
  2. Step 2: Convert to fraction form
    481,151.88/721,685.70 = 144,267.75/x
  3. Step 3: Cross multiply
    481,151.88x = 721,685.70 × 144,267.75
  4. Step 4: Simplify right side
    481,151.88x = 104,115,972,146.18
  5. Step 5: Solve for x
    x = 104,115,972,146.18/481,151.88
  6. Step 6: Final answer
    x = 216,389.00

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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.