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Finding the Fourth Proportional to 123,860.26, 185,839.62 and 39,633.40

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Solution

The fourth proportional to 123,860.26, 185,839.62 and 39,633.40 is: 59,465.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,860.26 : 185,839.62 = 39,633.40 : x
  2. Step 2: Convert to fraction form
    123,860.26/185,839.62 = 39,633.40/x
  3. Step 3: Cross multiply
    123,860.26x = 185,839.62 × 39,633.40
  4. Step 4: Simplify right side
    123,860.26x = 7,365,455,995.31
  5. Step 5: Solve for x
    x = 7,365,455,995.31/123,860.26
  6. Step 6: Final answer
    x = 59,465.85

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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.