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Finding the Fourth Proportional to 265,455.65, 397,942.83 and 132,376.70

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Solution

The fourth proportional to 265,455.65, 397,942.83 and 132,376.70 is: 198,445.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,455.65 : 397,942.83 = 132,376.70 : x
  2. Step 2: Convert to fraction form
    265,455.65/397,942.83 = 132,376.70/x
  3. Step 3: Cross multiply
    265,455.65x = 397,942.83 × 132,376.70
  4. Step 4: Simplify right side
    265,455.65x = 52,678,356,634.35
  5. Step 5: Solve for x
    x = 52,678,356,634.35/265,455.65
  6. Step 6: Final answer
    x = 198,445.04

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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.