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Finding the Fourth Proportional to 338,975.79, 467,785.31 and 186,016.56

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Solution

The fourth proportional to 338,975.79, 467,785.31 and 186,016.56 is: 256,702.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,975.79 : 467,785.31 = 186,016.56 : x
  2. Step 2: Convert to fraction form
    338,975.79/467,785.31 = 186,016.56/x
  3. Step 3: Cross multiply
    338,975.79x = 467,785.31 × 186,016.56
  4. Step 4: Simplify right side
    338,975.79x = 87,015,813,254.65
  5. Step 5: Solve for x
    x = 87,015,813,254.65/338,975.79
  6. Step 6: Final answer
    x = 256,702.15

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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.