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Finding the Fourth Proportional to 195,185.68, 269,356.80 and 105,761.68

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Solution

The fourth proportional to 195,185.68, 269,356.80 and 105,761.68 is: 145,951.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,185.68 : 269,356.80 = 105,761.68 : x
  2. Step 2: Convert to fraction form
    195,185.68/269,356.80 = 105,761.68/x
  3. Step 3: Cross multiply
    195,185.68x = 269,356.80 × 105,761.68
  4. Step 4: Simplify right side
    195,185.68x = 28,487,627,687.42
  5. Step 5: Solve for x
    x = 28,487,627,687.42/195,185.68
  6. Step 6: Final answer
    x = 145,951.42

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1.5x scale

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.