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Finding the Fourth Proportional to 178,319.70, 267,491.70 and 56,730.60

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Solution

The fourth proportional to 178,319.70, 267,491.70 and 56,730.60 is: 85,099.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,319.70 : 267,491.70 = 56,730.60 : x
  2. Step 2: Convert to fraction form
    178,319.70/267,491.70 = 56,730.60/x
  3. Step 3: Cross multiply
    178,319.70x = 267,491.70 × 56,730.60
  4. Step 4: Simplify right side
    178,319.70x = 15,174,964,636.02
  5. Step 5: Solve for x
    x = 15,174,964,636.02/178,319.70
  6. Step 6: Final answer
    x = 85,099.77

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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.