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Finding the Fourth Proportional to 178,471.58, 267,944.95 and 103,645.43

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Solution

The fourth proportional to 178,471.58, 267,944.95 and 103,645.43 is: 155,606.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,471.58 : 267,944.95 = 103,645.43 : x
  2. Step 2: Convert to fraction form
    178,471.58/267,944.95 = 103,645.43/x
  3. Step 3: Cross multiply
    178,471.58x = 267,944.95 × 103,645.43
  4. Step 4: Simplify right side
    178,471.58x = 27,771,269,040.85
  5. Step 5: Solve for x
    x = 27,771,269,040.85/178,471.58
  6. Step 6: Final answer
    x = 155,606.12

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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.