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Finding the Fourth Proportional to 441,665.52, 662,358.83 and 142,079.31

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Solution

The fourth proportional to 441,665.52, 662,358.83 and 142,079.31 is: 213,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,665.52 : 662,358.83 = 142,079.31 : x
  2. Step 2: Convert to fraction form
    441,665.52/662,358.83 = 142,079.31/x
  3. Step 3: Cross multiply
    441,665.52x = 662,358.83 × 142,079.31
  4. Step 4: Simplify right side
    441,665.52x = 94,107,482,227.01
  5. Step 5: Solve for x
    x = 94,107,482,227.01/441,665.52
  6. Step 6: Final answer
    x = 213,074.10

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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.