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Finding the Fourth Proportional to 124,806.80, 187,226.40 and 61,659.20

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Solution

The fourth proportional to 124,806.80, 187,226.40 and 61,659.20 is: 92,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,806.80 : 187,226.40 = 61,659.20 : x
  2. Step 2: Convert to fraction form
    124,806.80/187,226.40 = 61,659.20/x
  3. Step 3: Cross multiply
    124,806.80x = 187,226.40 × 61,659.20
  4. Step 4: Simplify right side
    124,806.80x = 11,544,230,042.88
  5. Step 5: Solve for x
    x = 11,544,230,042.88/124,806.80
  6. Step 6: Final answer
    x = 92,496.80

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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.