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Finding the Fourth Proportional to 124,079.66, 186,028.76 and 39,791.85

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Solution

The fourth proportional to 124,079.66, 186,028.76 and 39,791.85 is: 59,658.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,079.66 : 186,028.76 = 39,791.85 : x
  2. Step 2: Convert to fraction form
    124,079.66/186,028.76 = 39,791.85/x
  3. Step 3: Cross multiply
    124,079.66x = 186,028.76 × 39,791.85
  4. Step 4: Simplify right side
    124,079.66x = 7,402,428,613.09
  5. Step 5: Solve for x
    x = 7,402,428,613.09/124,079.66
  6. Step 6: Final answer
    x = 59,658.68

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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.