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Finding the Fourth Proportional to 178,748.40, 267,539.40 and 143,367.60

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Solution

The fourth proportional to 178,748.40, 267,539.40 and 143,367.60 is: 214,583.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,748.40 : 267,539.40 = 143,367.60 : x
  2. Step 2: Convert to fraction form
    178,748.40/267,539.40 = 143,367.60/x
  3. Step 3: Cross multiply
    178,748.40x = 267,539.40 × 143,367.60
  4. Step 4: Simplify right side
    178,748.40x = 38,356,481,683.44
  5. Step 5: Solve for x
    x = 38,356,481,683.44/178,748.40
  6. Step 6: Final answer
    x = 214,583.64

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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.