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Finding the Fourth Proportional to 178,574.10, 267,860.88 and 73,318.92

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Solution

The fourth proportional to 178,574.10, 267,860.88 and 73,318.92 is: 109,978.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,574.10 : 267,860.88 = 73,318.92 : x
  2. Step 2: Convert to fraction form
    178,574.10/267,860.88 = 73,318.92/x
  3. Step 3: Cross multiply
    178,574.10x = 267,860.88 × 73,318.92
  4. Step 4: Simplify right side
    178,574.10x = 19,639,270,431.85
  5. Step 5: Solve for x
    x = 19,639,270,431.85/178,574.10
  6. Step 6: Final answer
    x = 109,978.27

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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.