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Finding the Fourth Proportional to 481,348.76, 722,133.87 and 161,543.07

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Solution

The fourth proportional to 481,348.76, 722,133.87 and 161,543.07 is: 242,351.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,348.76 : 722,133.87 = 161,543.07 : x
  2. Step 2: Convert to fraction form
    481,348.76/722,133.87 = 161,543.07/x
  3. Step 3: Cross multiply
    481,348.76x = 722,133.87 × 161,543.07
  4. Step 4: Simplify right side
    481,348.76x = 116,655,721,628.27
  5. Step 5: Solve for x
    x = 116,655,721,628.27/481,348.76
  6. Step 6: Final answer
    x = 242,351.76

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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.