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Finding the Fourth Proportional to 351,269.45, 484,751.80 and 190,124.47

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Solution

The fourth proportional to 351,269.45, 484,751.80 and 190,124.47 is: 262,371.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,269.45 : 484,751.80 = 190,124.47 : x
  2. Step 2: Convert to fraction form
    351,269.45/484,751.80 = 190,124.47/x
  3. Step 3: Cross multiply
    351,269.45x = 484,751.80 × 190,124.47
  4. Step 4: Simplify right side
    351,269.45x = 92,163,179,056.55
  5. Step 5: Solve for x
    x = 92,163,179,056.55/351,269.45
  6. Step 6: Final answer
    x = 262,371.75

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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.