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Finding the Fourth Proportional to 183,708, 275,579.42 and 71,396.88

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Solution

The fourth proportional to 183,708, 275,579.42 and 71,396.88 is: 107,102.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,708 : 275,579.42 = 71,396.88 : x
  2. Step 2: Convert to fraction form
    183,708/275,579.42 = 71,396.88/x
  3. Step 3: Cross multiply
    183,708x = 275,579.42 × 71,396.88
  4. Step 4: Simplify right side
    183,708x = 19,675,509,389.80
  5. Step 5: Solve for x
    x = 19,675,509,389.80/183,708
  6. Step 6: Final answer
    x = 107,102.08

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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.