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Finding the Fourth Proportional to 235,540.19, 353,096.49 and 85,674.54

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Solution

The fourth proportional to 235,540.19, 353,096.49 and 85,674.54 is: 128,434.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,540.19 : 353,096.49 = 85,674.54 : x
  2. Step 2: Convert to fraction form
    235,540.19/353,096.49 = 85,674.54/x
  3. Step 3: Cross multiply
    235,540.19x = 353,096.49 × 85,674.54
  4. Step 4: Simplify right side
    235,540.19x = 30,251,379,356.36
  5. Step 5: Solve for x
    x = 30,251,379,356.36/235,540.19
  6. Step 6: Final answer
    x = 128,434.05

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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.