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Finding the Fourth Proportional to 262,611.52, 362,280 and 190,960

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Solution

The fourth proportional to 262,611.52, 362,280 and 190,960 is: 263,434.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,611.52 : 362,280 = 190,960 : x
  2. Step 2: Convert to fraction form
    262,611.52/362,280 = 190,960/x
  3. Step 3: Cross multiply
    262,611.52x = 362,280 × 190,960
  4. Step 4: Simplify right side
    262,611.52x = 69,180,988,800
  5. Step 5: Solve for x
    x = 69,180,988,800/262,611.52
  6. Step 6: Final answer
    x = 263,434.71

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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.