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Finding the Fourth Proportional to 54,129.60, 81,202.44 and 19,063.04

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Solution

The fourth proportional to 54,129.60, 81,202.44 and 19,063.04 is: 28,597.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,129.60 : 81,202.44 = 19,063.04 : x
  2. Step 2: Convert to fraction form
    54,129.60/81,202.44 = 19,063.04/x
  3. Step 3: Cross multiply
    54,129.60x = 81,202.44 × 19,063.04
  4. Step 4: Simplify right side
    54,129.60x = 1,547,965,361.82
  5. Step 5: Solve for x
    x = 1,547,965,361.82/54,129.60
  6. Step 6: Final answer
    x = 28,597.39

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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.