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Finding the Fourth Proportional to 183,728.66, 275,568.28 and 71,398.06

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Solution

The fourth proportional to 183,728.66, 275,568.28 and 71,398.06 is: 107,087.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,728.66 : 275,568.28 = 71,398.06 : x
  2. Step 2: Convert to fraction form
    183,728.66/275,568.28 = 71,398.06/x
  3. Step 3: Cross multiply
    183,728.66x = 275,568.28 × 71,398.06
  4. Step 4: Simplify right side
    183,728.66x = 19,675,039,722.12
  5. Step 5: Solve for x
    x = 19,675,039,722.12/183,728.66
  6. Step 6: Final answer
    x = 107,087.49

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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.