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Finding the Fourth Proportional to 319,336.69, 440,664.51 and 183,274.88

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Solution

The fourth proportional to 319,336.69, 440,664.51 and 183,274.88 is: 252,907.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,336.69 : 440,664.51 = 183,274.88 : x
  2. Step 2: Convert to fraction form
    319,336.69/440,664.51 = 183,274.88/x
  3. Step 3: Cross multiply
    319,336.69x = 440,664.51 × 183,274.88
  4. Step 4: Simplify right side
    319,336.69x = 80,762,733,674.47
  5. Step 5: Solve for x
    x = 80,762,733,674.47/319,336.69
  6. Step 6: Final answer
    x = 252,907.78

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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.