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Finding the Fourth Proportional to 178,572.57, 267,855.93 and 71,953.95

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Solution

The fourth proportional to 178,572.57, 267,855.93 and 71,953.95 is: 107,929.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,572.57 : 267,855.93 = 71,953.95 : x
  2. Step 2: Convert to fraction form
    178,572.57/267,855.93 = 71,953.95/x
  3. Step 3: Cross multiply
    178,572.57x = 267,855.93 × 71,953.95
  4. Step 4: Simplify right side
    178,572.57x = 19,273,293,198.88
  5. Step 5: Solve for x
    x = 19,273,293,198.88/178,572.57
  6. Step 6: Final answer
    x = 107,929.75

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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.