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Finding the Fourth Proportional to 140,762.76, 211,145.49 and 35,581.70

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Solution

The fourth proportional to 140,762.76, 211,145.49 and 35,581.70 is: 53,372.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,762.76 : 211,145.49 = 35,581.70 : x
  2. Step 2: Convert to fraction form
    140,762.76/211,145.49 = 35,581.70/x
  3. Step 3: Cross multiply
    140,762.76x = 211,145.49 × 35,581.70
  4. Step 4: Simplify right side
    140,762.76x = 7,512,914,425.81
  5. Step 5: Solve for x
    x = 7,512,914,425.81/140,762.76
  6. Step 6: Final answer
    x = 53,372.88

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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.