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Finding the Fourth Proportional to 351,042.78, 484,412.35 and 198,095.19

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Solution

The fourth proportional to 351,042.78, 484,412.35 and 198,095.19 is: 273,356.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,042.78 : 484,412.35 = 198,095.19 : x
  2. Step 2: Convert to fraction form
    351,042.78/484,412.35 = 198,095.19/x
  3. Step 3: Cross multiply
    351,042.78x = 484,412.35 × 198,095.19
  4. Step 4: Simplify right side
    351,042.78x = 95,959,756,511.60
  5. Step 5: Solve for x
    x = 95,959,756,511.60/351,042.78
  6. Step 6: Final answer
    x = 273,356.30

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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.