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Finding the Fourth Proportional to 107,897.82, 161,846.73 and 45,568.86

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Solution

The fourth proportional to 107,897.82, 161,846.73 and 45,568.86 is: 68,353.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,897.82 : 161,846.73 = 45,568.86 : x
  2. Step 2: Convert to fraction form
    107,897.82/161,846.73 = 45,568.86/x
  3. Step 3: Cross multiply
    107,897.82x = 161,846.73 × 45,568.86
  4. Step 4: Simplify right side
    107,897.82x = 7,375,170,980.83
  5. Step 5: Solve for x
    x = 7,375,170,980.83/107,897.82
  6. Step 6: Final answer
    x = 68,353.29

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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.