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Finding the Fourth Proportional to 193,129.20, 289,110.60 and 169,801.20

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Solution

The fourth proportional to 193,129.20, 289,110.60 and 169,801.20 is: 254,189.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,129.20 : 289,110.60 = 169,801.20 : x
  2. Step 2: Convert to fraction form
    193,129.20/289,110.60 = 169,801.20/x
  3. Step 3: Cross multiply
    193,129.20x = 289,110.60 × 169,801.20
  4. Step 4: Simplify right side
    193,129.20x = 49,091,326,812.72
  5. Step 5: Solve for x
    x = 49,091,326,812.72/193,129.20
  6. Step 6: Final answer
    x = 254,189.04

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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.