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Finding the Fourth Proportional to 107,169.03, 160,720.71 and 74,101.59

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Solution

The fourth proportional to 107,169.03, 160,720.71 and 74,101.59 is: 111,129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,169.03 : 160,720.71 = 74,101.59 : x
  2. Step 2: Convert to fraction form
    107,169.03/160,720.71 = 74,101.59/x
  3. Step 3: Cross multiply
    107,169.03x = 160,720.71 × 74,101.59
  4. Step 4: Simplify right side
    107,169.03x = 11,909,658,982.82
  5. Step 5: Solve for x
    x = 11,909,658,982.82/107,169.03
  6. Step 6: Final answer
    x = 111,129.68

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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.