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Finding the Fourth Proportional to 139,727.85, 209,527.48 and 44,940.52

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Solution

The fourth proportional to 139,727.85, 209,527.48 and 44,940.52 is: 67,390.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,727.85 : 209,527.48 = 44,940.52 : x
  2. Step 2: Convert to fraction form
    139,727.85/209,527.48 = 44,940.52/x
  3. Step 3: Cross multiply
    139,727.85x = 209,527.48 × 44,940.52
  4. Step 4: Simplify right side
    139,727.85x = 9,416,273,905.49
  5. Step 5: Solve for x
    x = 9,416,273,905.49/139,727.85
  6. Step 6: Final answer
    x = 67,390.10

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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.