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Finding the Fourth Proportional to 481,964.61, 722,186.52 and 177,940.70

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Solution

The fourth proportional to 481,964.61, 722,186.52 and 177,940.70 is: 266,630.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,964.61 : 722,186.52 = 177,940.70 : x
  2. Step 2: Convert to fraction form
    481,964.61/722,186.52 = 177,940.70/x
  3. Step 3: Cross multiply
    481,964.61x = 722,186.52 × 177,940.70
  4. Step 4: Simplify right side
    481,964.61x = 128,506,374,899.36
  5. Step 5: Solve for x
    x = 128,506,374,899.36/481,964.61
  6. Step 6: Final answer
    x = 266,630.31

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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.