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Finding the Fourth Proportional to 183,889.43, 275,762.15 and 71,554.78

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Solution

The fourth proportional to 183,889.43, 275,762.15 and 71,554.78 is: 107,304.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,889.43 : 275,762.15 = 71,554.78 : x
  2. Step 2: Convert to fraction form
    183,889.43/275,762.15 = 71,554.78/x
  3. Step 3: Cross multiply
    183,889.43x = 275,762.15 × 71,554.78
  4. Step 4: Simplify right side
    183,889.43x = 19,732,099,975.58
  5. Step 5: Solve for x
    x = 19,732,099,975.58/183,889.43
  6. Step 6: Final answer
    x = 107,304.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.