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Finding the Fourth Proportional to 107,735.78, 161,603.73 and 51,562.68

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Solution

The fourth proportional to 107,735.78, 161,603.73 and 51,562.68 is: 77,344.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,735.78 : 161,603.73 = 51,562.68 : x
  2. Step 2: Convert to fraction form
    107,735.78/161,603.73 = 51,562.68/x
  3. Step 3: Cross multiply
    107,735.78x = 161,603.73 × 51,562.68
  4. Step 4: Simplify right side
    107,735.78x = 8,332,721,416.80
  5. Step 5: Solve for x
    x = 8,332,721,416.80/107,735.78
  6. Step 6: Final answer
    x = 77,344.05

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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.