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Finding the Fourth Proportional to 178,049.70, 267,074.55 and 118,692.90

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Solution

The fourth proportional to 178,049.70, 267,074.55 and 118,692.90 is: 178,039.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,049.70 : 267,074.55 = 118,692.90 : x
  2. Step 2: Convert to fraction form
    178,049.70/267,074.55 = 118,692.90/x
  3. Step 3: Cross multiply
    178,049.70x = 267,074.55 × 118,692.90
  4. Step 4: Simplify right side
    178,049.70x = 31,699,852,855.70
  5. Step 5: Solve for x
    x = 31,699,852,855.70/178,049.70
  6. Step 6: Final answer
    x = 178,039.35

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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.