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Finding the Fourth Proportional to 208,482.20, 312,723.56 and 50,709.56

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Solution

The fourth proportional to 208,482.20, 312,723.56 and 50,709.56 is: 76,064.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,482.20 : 312,723.56 = 50,709.56 : x
  2. Step 2: Convert to fraction form
    208,482.20/312,723.56 = 50,709.56/x
  3. Step 3: Cross multiply
    208,482.20x = 312,723.56 × 50,709.56
  4. Step 4: Simplify right side
    208,482.20x = 15,858,074,129.23
  5. Step 5: Solve for x
    x = 15,858,074,129.23/208,482.20
  6. Step 6: Final answer
    x = 76,064.40

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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.