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Finding the Fourth Proportional to 123,998.40, 185,983.20 and 35,265.60

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Solution

The fourth proportional to 123,998.40, 185,983.20 and 35,265.60 is: 52,894.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,998.40 : 185,983.20 = 35,265.60 : x
  2. Step 2: Convert to fraction form
    123,998.40/185,983.20 = 35,265.60/x
  3. Step 3: Cross multiply
    123,998.40x = 185,983.20 × 35,265.60
  4. Step 4: Simplify right side
    123,998.40x = 6,558,809,137.92
  5. Step 5: Solve for x
    x = 6,558,809,137.92/123,998.40
  6. Step 6: Final answer
    x = 52,894.30

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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.