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Finding the Fourth Proportional to 194,959.64, 269,044.33 and 105,535.64

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Solution

The fourth proportional to 194,959.64, 269,044.33 and 105,535.64 is: 145,639.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,959.64 : 269,044.33 = 105,535.64 : x
  2. Step 2: Convert to fraction form
    194,959.64/269,044.33 = 105,535.64/x
  3. Step 3: Cross multiply
    194,959.64x = 269,044.33 × 105,535.64
  4. Step 4: Simplify right side
    194,959.64x = 28,393,765,963.69
  5. Step 5: Solve for x
    x = 28,393,765,963.69/194,959.64
  6. Step 6: Final answer
    x = 145,639.20

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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.