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Finding the Fourth Proportional to 101,950.94, 140,687.73 and 56,632.05

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Solution

The fourth proportional to 101,950.94, 140,687.73 and 56,632.05 is: 78,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,950.94 : 140,687.73 = 56,632.05 : x
  2. Step 2: Convert to fraction form
    101,950.94/140,687.73 = 56,632.05/x
  3. Step 3: Cross multiply
    101,950.94x = 140,687.73 × 56,632.05
  4. Step 4: Simplify right side
    101,950.94x = 7,967,434,559.75
  5. Step 5: Solve for x
    x = 7,967,434,559.75/101,950.94
  6. Step 6: Final answer
    x = 78,149.70

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Why These Related Problems?

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