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Finding the Fourth Proportional to 319,474.46, 440,859.92 and 183,412.64

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Solution

The fourth proportional to 319,474.46, 440,859.92 and 183,412.64 is: 253,100.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,474.46 : 440,859.92 = 183,412.64 : x
  2. Step 2: Convert to fraction form
    319,474.46/440,859.92 = 183,412.64/x
  3. Step 3: Cross multiply
    319,474.46x = 440,859.92 × 183,412.64
  4. Step 4: Simplify right side
    319,474.46x = 80,859,280,880.33
  5. Step 5: Solve for x
    x = 80,859,280,880.33/319,474.46
  6. Step 6: Final answer
    x = 253,100.93

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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.