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Finding the Fourth Proportional to 107,168.52, 160,719.96 and 74,101.08

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Solution

The fourth proportional to 107,168.52, 160,719.96 and 74,101.08 is: 111,128.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,168.52 : 160,719.96 = 74,101.08 : x
  2. Step 2: Convert to fraction form
    107,168.52/160,719.96 = 74,101.08/x
  3. Step 3: Cross multiply
    107,168.52x = 160,719.96 × 74,101.08
  4. Step 4: Simplify right side
    107,168.52x = 11,909,522,644.85
  5. Step 5: Solve for x
    x = 11,909,522,644.85/107,168.52
  6. Step 6: Final answer
    x = 111,128.92

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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.