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Finding the Fourth Proportional to 481,715.61, 722,398.89 and 161,771.76

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Solution

The fourth proportional to 481,715.61, 722,398.89 and 161,771.76 is: 242,599.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,715.61 : 722,398.89 = 161,771.76 : x
  2. Step 2: Convert to fraction form
    481,715.61/722,398.89 = 161,771.76/x
  3. Step 3: Cross multiply
    481,715.61x = 722,398.89 × 161,771.76
  4. Step 4: Simplify right side
    481,715.61x = 116,863,739,857.35
  5. Step 5: Solve for x
    x = 116,863,739,857.35/481,715.61
  6. Step 6: Final answer
    x = 242,599.03

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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.