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Finding the Fourth Proportional to 140,359.68, 210,571.11 and 46,863

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Solution

The fourth proportional to 140,359.68, 210,571.11 and 46,863 is: 70,305.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,359.68 : 210,571.11 = 46,863 : x
  2. Step 2: Convert to fraction form
    140,359.68/210,571.11 = 46,863/x
  3. Step 3: Cross multiply
    140,359.68x = 210,571.11 × 46,863
  4. Step 4: Simplify right side
    140,359.68x = 9,867,993,927.93
  5. Step 5: Solve for x
    x = 9,867,993,927.93/140,359.68
  6. Step 6: Final answer
    x = 70,305.05

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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.