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Finding the Fourth Proportional to 235,785.94, 353,734.26 and 78,014.39

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Solution

The fourth proportional to 235,785.94, 353,734.26 and 78,014.39 is: 117,039.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,785.94 : 353,734.26 = 78,014.39 : x
  2. Step 2: Convert to fraction form
    235,785.94/353,734.26 = 78,014.39/x
  3. Step 3: Cross multiply
    235,785.94x = 353,734.26 × 78,014.39
  4. Step 4: Simplify right side
    235,785.94x = 27,596,363,102.78
  5. Step 5: Solve for x
    x = 27,596,363,102.78/235,785.94
  6. Step 6: Final answer
    x = 117,039.90

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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.