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Finding the Fourth Proportional to 187,049.96, 280,686.71 and 68,733.26

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Solution

The fourth proportional to 187,049.96, 280,686.71 and 68,733.26 is: 103,140.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,049.96 : 280,686.71 = 68,733.26 : x
  2. Step 2: Convert to fraction form
    187,049.96/280,686.71 = 68,733.26/x
  3. Step 3: Cross multiply
    187,049.96x = 280,686.71 × 68,733.26
  4. Step 4: Simplify right side
    187,049.96x = 19,292,511,385.37
  5. Step 5: Solve for x
    x = 19,292,511,385.37/187,049.96
  6. Step 6: Final answer
    x = 103,140.96

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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.