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Finding the Fourth Proportional to 124,894.80, 187,358.40 and 61,747.20

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Solution

The fourth proportional to 124,894.80, 187,358.40 and 61,747.20 is: 92,628.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,894.80 : 187,358.40 = 61,747.20 : x
  2. Step 2: Convert to fraction form
    124,894.80/187,358.40 = 61,747.20/x
  3. Step 3: Cross multiply
    124,894.80x = 187,358.40 × 61,747.20
  4. Step 4: Simplify right side
    124,894.80x = 11,568,856,596.48
  5. Step 5: Solve for x
    x = 11,568,856,596.48/124,894.80
  6. Step 6: Final answer
    x = 92,628.81

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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.