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Finding the Fourth Proportional to 119,169.60, 178,851.60 and 115,281.60

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Solution

The fourth proportional to 119,169.60, 178,851.60 and 115,281.60 is: 173,016.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,169.60 : 178,851.60 = 115,281.60 : x
  2. Step 2: Convert to fraction form
    119,169.60/178,851.60 = 115,281.60/x
  3. Step 3: Cross multiply
    119,169.60x = 178,851.60 × 115,281.60
  4. Step 4: Simplify right side
    119,169.60x = 20,618,298,610.56
  5. Step 5: Solve for x
    x = 20,618,298,610.56/119,169.60
  6. Step 6: Final answer
    x = 173,016.43

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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.