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Finding the Fourth Proportional to 178,645.88, 267,575.16 and 99,563.96

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Solution

The fourth proportional to 178,645.88, 267,575.16 and 99,563.96 is: 149,126.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,645.88 : 267,575.16 = 99,563.96 : x
  2. Step 2: Convert to fraction form
    178,645.88/267,575.16 = 99,563.96/x
  3. Step 3: Cross multiply
    178,645.88x = 267,575.16 × 99,563.96
  4. Step 4: Simplify right side
    178,645.88x = 26,640,842,527.23
  5. Step 5: Solve for x
    x = 26,640,842,527.23/178,645.88
  6. Step 6: Final answer
    x = 149,126.54

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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.