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Finding the Fourth Proportional to 319,611.87, 441,139.87 and 183,724.65

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Solution

The fourth proportional to 319,611.87, 441,139.87 and 183,724.65 is: 253,583.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,611.87 : 441,139.87 = 183,724.65 : x
  2. Step 2: Convert to fraction form
    319,611.87/441,139.87 = 183,724.65/x
  3. Step 3: Cross multiply
    319,611.87x = 441,139.87 × 183,724.65
  4. Step 4: Simplify right side
    319,611.87x = 81,048,268,446.45
  5. Step 5: Solve for x
    x = 81,048,268,446.45/319,611.87
  6. Step 6: Final answer
    x = 253,583.41

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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.