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Finding the Fourth Proportional to 73,043.78, 109,577.79 and 25,646.57

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Solution

The fourth proportional to 73,043.78, 109,577.79 and 25,646.57 is: 38,474.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,043.78 : 109,577.79 = 25,646.57 : x
  2. Step 2: Convert to fraction form
    73,043.78/109,577.79 = 25,646.57/x
  3. Step 3: Cross multiply
    73,043.78x = 109,577.79 × 25,646.57
  4. Step 4: Simplify right side
    73,043.78x = 2,810,294,461.68
  5. Step 5: Solve for x
    x = 2,810,294,461.68/73,043.78
  6. Step 6: Final answer
    x = 38,474.11

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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.