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Finding the Fourth Proportional to 178,692.20, 267,731.10 and 116,330.60

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Solution

The fourth proportional to 178,692.20, 267,731.10 and 116,330.60 is: 174,295.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,692.20 : 267,731.10 = 116,330.60 : x
  2. Step 2: Convert to fraction form
    178,692.20/267,731.10 = 116,330.60/x
  3. Step 3: Cross multiply
    178,692.20x = 267,731.10 × 116,330.60
  4. Step 4: Simplify right side
    178,692.20x = 31,145,319,501.66
  5. Step 5: Solve for x
    x = 31,145,319,501.66/178,692.20
  6. Step 6: Final answer
    x = 174,295.91

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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.