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Finding the Fourth Proportional to 119,026.80, 178,540.20 and 117,277.20

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Solution

The fourth proportional to 119,026.80, 178,540.20 and 117,277.20 is: 175,915.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,026.80 : 178,540.20 = 117,277.20 : x
  2. Step 2: Convert to fraction form
    119,026.80/178,540.20 = 117,277.20/x
  3. Step 3: Cross multiply
    119,026.80x = 178,540.20 × 117,277.20
  4. Step 4: Simplify right side
    119,026.80x = 20,938,694,743.44
  5. Step 5: Solve for x
    x = 20,938,694,743.44/119,026.80
  6. Step 6: Final answer
    x = 175,915.80

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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.