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Finding the Fourth Proportional to 178,159, 267,238.68 and 45,039.56

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Solution

The fourth proportional to 178,159, 267,238.68 and 45,039.56 is: 67,559.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,159 : 267,238.68 = 45,039.56 : x
  2. Step 2: Convert to fraction form
    178,159/267,238.68 = 45,039.56/x
  3. Step 3: Cross multiply
    178,159x = 267,238.68 × 45,039.56
  4. Step 4: Simplify right side
    178,159x = 12,036,312,562.18
  5. Step 5: Solve for x
    x = 12,036,312,562.18/178,159
  6. Step 6: Final answer
    x = 67,559.39

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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.