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Finding the Fourth Proportional to 178,122.98, 267,182.72 and 76,992.56

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Solution

The fourth proportional to 178,122.98, 267,182.72 and 76,992.56 is: 115,488.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,122.98 : 267,182.72 = 76,992.56 : x
  2. Step 2: Convert to fraction form
    178,122.98/267,182.72 = 76,992.56/x
  3. Step 3: Cross multiply
    178,122.98x = 267,182.72 × 76,992.56
  4. Step 4: Simplify right side
    178,122.98x = 20,571,081,170.34
  5. Step 5: Solve for x
    x = 20,571,081,170.34/178,122.98
  6. Step 6: Final answer
    x = 115,488.08

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1.5x scale

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.