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Finding the Fourth Proportional to 208,473.20, 312,710.04 and 50,700.56

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Solution

The fourth proportional to 208,473.20, 312,710.04 and 50,700.56 is: 76,050.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,473.20 : 312,710.04 = 50,700.56 : x
  2. Step 2: Convert to fraction form
    208,473.20/312,710.04 = 50,700.56/x
  3. Step 3: Cross multiply
    208,473.20x = 312,710.04 × 50,700.56
  4. Step 4: Simplify right side
    208,473.20x = 15,854,574,145.62
  5. Step 5: Solve for x
    x = 15,854,574,145.62/208,473.20
  6. Step 6: Final answer
    x = 76,050.90

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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.