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Finding the Fourth Proportional to 124,079.64, 186,028.72 and 39,791.83

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Solution

The fourth proportional to 124,079.64, 186,028.72 and 39,791.83 is: 59,658.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,079.64 : 186,028.72 = 39,791.83 : x
  2. Step 2: Convert to fraction form
    124,079.64/186,028.72 = 39,791.83/x
  3. Step 3: Cross multiply
    124,079.64x = 186,028.72 × 39,791.83
  4. Step 4: Simplify right side
    124,079.64x = 7,402,422,786.03
  5. Step 5: Solve for x
    x = 7,402,422,786.03/124,079.64
  6. Step 6: Final answer
    x = 59,658.64

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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.