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Finding the Fourth Proportional to 67,940.73, 101,807.19 and 28,476.33

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Solution

The fourth proportional to 67,940.73, 101,807.19 and 28,476.33 is: 42,670.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,940.73 : 101,807.19 = 28,476.33 : x
  2. Step 2: Convert to fraction form
    67,940.73/101,807.19 = 28,476.33/x
  3. Step 3: Cross multiply
    67,940.73x = 101,807.19 × 28,476.33
  4. Step 4: Simplify right side
    67,940.73x = 2,899,095,138.81
  5. Step 5: Solve for x
    x = 2,899,095,138.81/67,940.73
  6. Step 6: Final answer
    x = 42,670.94

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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.