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Finding the Fourth Proportional to 303,959.46, 455,948.43 and 104,276.97

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Solution

The fourth proportional to 303,959.46, 455,948.43 and 104,276.97 is: 156,418.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,959.46 : 455,948.43 = 104,276.97 : x
  2. Step 2: Convert to fraction form
    303,959.46/455,948.43 = 104,276.97/x
  3. Step 3: Cross multiply
    303,959.46x = 455,948.43 × 104,276.97
  4. Step 4: Simplify right side
    303,959.46x = 47,544,920,756.66
  5. Step 5: Solve for x
    x = 47,544,920,756.66/303,959.46
  6. Step 6: Final answer
    x = 156,418.62

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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.