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Finding the Fourth Proportional to 50,822.50, 70,135.05 and 30,950.50

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Solution

The fourth proportional to 50,822.50, 70,135.05 and 30,950.50 is: 42,711.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,822.50 : 70,135.05 = 30,950.50 : x
  2. Step 2: Convert to fraction form
    50,822.50/70,135.05 = 30,950.50/x
  3. Step 3: Cross multiply
    50,822.50x = 70,135.05 × 30,950.50
  4. Step 4: Simplify right side
    50,822.50x = 2,170,714,865.03
  5. Step 5: Solve for x
    x = 2,170,714,865.03/50,822.50
  6. Step 6: Final answer
    x = 42,711.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.