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Finding the Fourth Proportional to 373,901.76, 515,996.64 and 204,148.80

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Solution

The fourth proportional to 373,901.76, 515,996.64 and 204,148.80 is: 281,732.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,901.76 : 515,996.64 = 204,148.80 : x
  2. Step 2: Convert to fraction form
    373,901.76/515,996.64 = 204,148.80/x
  3. Step 3: Cross multiply
    373,901.76x = 515,996.64 × 204,148.80
  4. Step 4: Simplify right side
    373,901.76x = 105,340,094,860.03
  5. Step 5: Solve for x
    x = 105,340,094,860.03/373,901.76
  6. Step 6: Final answer
    x = 281,732.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.