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Finding the Fourth Proportional to 481,641.49, 722,463.95 and 161,784.21

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Solution

The fourth proportional to 481,641.49, 722,463.95 and 161,784.21 is: 242,676.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,641.49 : 722,463.95 = 161,784.21 : x
  2. Step 2: Convert to fraction form
    481,641.49/722,463.95 = 161,784.21/x
  3. Step 3: Cross multiply
    481,641.49x = 722,463.95 × 161,784.21
  4. Step 4: Simplify right side
    481,641.49x = 116,883,260,805.93
  5. Step 5: Solve for x
    x = 116,883,260,805.93/481,641.49
  6. Step 6: Final answer
    x = 242,676.89

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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.