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Finding the Fourth Proportional to 140,563.30, 210,942.15 and 101,148.70

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Solution

The fourth proportional to 140,563.30, 210,942.15 and 101,148.70 is: 151,792.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,563.30 : 210,942.15 = 101,148.70 : x
  2. Step 2: Convert to fraction form
    140,563.30/210,942.15 = 101,148.70/x
  3. Step 3: Cross multiply
    140,563.30x = 210,942.15 × 101,148.70
  4. Step 4: Simplify right side
    140,563.30x = 21,336,524,247.71
  5. Step 5: Solve for x
    x = 21,336,524,247.71/140,563.30
  6. Step 6: Final answer
    x = 151,792.99

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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.