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Finding the Fourth Proportional to 191,704.60, 287,556.90 and 168,376.60

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Solution

The fourth proportional to 191,704.60, 287,556.90 and 168,376.60 is: 252,564.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,704.60 : 287,556.90 = 168,376.60 : x
  2. Step 2: Convert to fraction form
    191,704.60/287,556.90 = 168,376.60/x
  3. Step 3: Cross multiply
    191,704.60x = 287,556.90 × 168,376.60
  4. Step 4: Simplify right side
    191,704.60x = 48,417,853,128.54
  5. Step 5: Solve for x
    x = 48,417,853,128.54/191,704.60
  6. Step 6: Final answer
    x = 252,564.90

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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.