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Finding the Fourth Proportional to 178,846.60, 267,962.70 and 85,150.60

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Solution

The fourth proportional to 178,846.60, 267,962.70 and 85,150.60 is: 127,579.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,846.60 : 267,962.70 = 85,150.60 : x
  2. Step 2: Convert to fraction form
    178,846.60/267,962.70 = 85,150.60/x
  3. Step 3: Cross multiply
    178,846.60x = 267,962.70 × 85,150.60
  4. Step 4: Simplify right side
    178,846.60x = 22,817,184,682.62
  5. Step 5: Solve for x
    x = 22,817,184,682.62/178,846.60
  6. Step 6: Final answer
    x = 127,579.64

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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.