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Finding the Fourth Proportional to 140,626.53, 210,939.39 and 57,520.53

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Solution

The fourth proportional to 140,626.53, 210,939.39 and 57,520.53 is: 86,280.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,626.53 : 210,939.39 = 57,520.53 : x
  2. Step 2: Convert to fraction form
    140,626.53/210,939.39 = 57,520.53/x
  3. Step 3: Cross multiply
    140,626.53x = 210,939.39 × 57,520.53
  4. Step 4: Simplify right side
    140,626.53x = 12,133,345,510.68
  5. Step 5: Solve for x
    x = 12,133,345,510.68/140,626.53
  6. Step 6: Final answer
    x = 86,280.63

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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.