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Finding the Fourth Proportional to 150,652.74, 207,900.21 and 82,670.86

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Solution

The fourth proportional to 150,652.74, 207,900.21 and 82,670.86 is: 114,085.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,652.74 : 207,900.21 = 82,670.86 : x
  2. Step 2: Convert to fraction form
    150,652.74/207,900.21 = 82,670.86/x
  3. Step 3: Cross multiply
    150,652.74x = 207,900.21 × 82,670.86
  4. Step 4: Simplify right side
    150,652.74x = 17,187,289,154.88
  5. Step 5: Solve for x
    x = 17,187,289,154.88/150,652.74
  6. Step 6: Final answer
    x = 114,085.47

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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.