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Finding the Fourth Proportional to 231,662.40, 319,730.40 and 167,976.96

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Solution

The fourth proportional to 231,662.40, 319,730.40 and 167,976.96 is: 231,834.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,662.40 : 319,730.40 = 167,976.96 : x
  2. Step 2: Convert to fraction form
    231,662.40/319,730.40 = 167,976.96/x
  3. Step 3: Cross multiply
    231,662.40x = 319,730.40 × 167,976.96
  4. Step 4: Simplify right side
    231,662.40x = 53,707,340,611.58
  5. Step 5: Solve for x
    x = 53,707,340,611.58/231,662.40
  6. Step 6: Final answer
    x = 231,834.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.