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Finding the Fourth Proportional to 341,980.44, 512,946.36 and 105,298.44

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Solution

The fourth proportional to 341,980.44, 512,946.36 and 105,298.44 is: 157,940.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,980.44 : 512,946.36 = 105,298.44 : x
  2. Step 2: Convert to fraction form
    341,980.44/512,946.36 = 105,298.44/x
  3. Step 3: Cross multiply
    341,980.44x = 512,946.36 × 105,298.44
  4. Step 4: Simplify right side
    341,980.44x = 54,012,451,511.68
  5. Step 5: Solve for x
    x = 54,012,451,511.68/341,980.44
  6. Step 6: Final answer
    x = 157,940.18

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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.