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Finding the Fourth Proportional to 303,969.92, 455,964.17 and 104,287.50

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Solution

The fourth proportional to 303,969.92, 455,964.17 and 104,287.50 is: 156,434.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,969.92 : 455,964.17 = 104,287.50 : x
  2. Step 2: Convert to fraction form
    303,969.92/455,964.17 = 104,287.50/x
  3. Step 3: Cross multiply
    303,969.92x = 455,964.17 × 104,287.50
  4. Step 4: Simplify right side
    303,969.92x = 47,551,362,857.44
  5. Step 5: Solve for x
    x = 47,551,362,857.44/303,969.92
  6. Step 6: Final answer
    x = 156,434.44

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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.