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Finding the Fourth Proportional to 123,790.88, 185,696.65 and 39,563.03

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Solution

The fourth proportional to 123,790.88, 185,696.65 and 39,563.03 is: 59,347.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,790.88 : 185,696.65 = 39,563.03 : x
  2. Step 2: Convert to fraction form
    123,790.88/185,696.65 = 39,563.03/x
  3. Step 3: Cross multiply
    123,790.88x = 185,696.65 × 39,563.03
  4. Step 4: Simplify right side
    123,790.88x = 7,346,722,648.54
  5. Step 5: Solve for x
    x = 7,346,722,648.54/123,790.88
  6. Step 6: Final answer
    x = 59,347.85

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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.