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Finding the Fourth Proportional to 274,349.34, 411,516.27 and 74,671.46

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Solution

The fourth proportional to 274,349.34, 411,516.27 and 74,671.46 is: 112,005.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,349.34 : 411,516.27 = 74,671.46 : x
  2. Step 2: Convert to fraction form
    274,349.34/411,516.27 = 74,671.46/x
  3. Step 3: Cross multiply
    274,349.34x = 411,516.27 × 74,671.46
  4. Step 4: Simplify right side
    274,349.34x = 30,728,520,694.65
  5. Step 5: Solve for x
    x = 30,728,520,694.65/274,349.34
  6. Step 6: Final answer
    x = 112,005.08

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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.