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Finding the Fourth Proportional to 139,195.59, 208,793.79 and 59,212.95

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Solution

The fourth proportional to 139,195.59, 208,793.79 and 59,212.95 is: 88,819.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,195.59 : 208,793.79 = 59,212.95 : x
  2. Step 2: Convert to fraction form
    139,195.59/208,793.79 = 59,212.95/x
  3. Step 3: Cross multiply
    139,195.59x = 208,793.79 × 59,212.95
  4. Step 4: Simplify right side
    139,195.59x = 12,363,296,247.58
  5. Step 5: Solve for x
    x = 12,363,296,247.58/139,195.59
  6. Step 6: Final answer
    x = 88,819.60

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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.