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Finding the Fourth Proportional to 175,685.40, 262,913.70 and 160,939.80

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Solution

The fourth proportional to 175,685.40, 262,913.70 and 160,939.80 is: 240,846.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,685.40 : 262,913.70 = 160,939.80 : x
  2. Step 2: Convert to fraction form
    175,685.40/262,913.70 = 160,939.80/x
  3. Step 3: Cross multiply
    175,685.40x = 262,913.70 × 160,939.80
  4. Step 4: Simplify right side
    175,685.40x = 42,313,278,295.26
  5. Step 5: Solve for x
    x = 42,313,278,295.26/175,685.40
  6. Step 6: Final answer
    x = 240,846.87

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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.