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Finding the Fourth Proportional to 208,400.22, 312,601.10 and 50,628.68

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Solution

The fourth proportional to 208,400.22, 312,601.10 and 50,628.68 is: 75,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,400.22 : 312,601.10 = 50,628.68 : x
  2. Step 2: Convert to fraction form
    208,400.22/312,601.10 = 50,628.68/x
  3. Step 3: Cross multiply
    208,400.22x = 312,601.10 × 50,628.68
  4. Step 4: Simplify right side
    208,400.22x = 15,826,579,243.40
  5. Step 5: Solve for x
    x = 15,826,579,243.40/208,400.22
  6. Step 6: Final answer
    x = 75,943.20

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1.5x scale

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.