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Finding the Fourth Proportional to 107,900.70, 161,851.04 and 45,571.74

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Solution

The fourth proportional to 107,900.70, 161,851.04 and 45,571.74 is: 68,357.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,900.70 : 161,851.04 = 45,571.74 : x
  2. Step 2: Convert to fraction form
    107,900.70/161,851.04 = 45,571.74/x
  3. Step 3: Cross multiply
    107,900.70x = 161,851.04 × 45,571.74
  4. Step 4: Simplify right side
    107,900.70x = 7,375,833,513.61
  5. Step 5: Solve for x
    x = 7,375,833,513.61/107,900.70
  6. Step 6: Final answer
    x = 68,357.61

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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.