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Finding the Fourth Proportional to 51,305.68, 76,893.72 and 43,702.48

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Solution

The fourth proportional to 51,305.68, 76,893.72 and 43,702.48 is: 65,498.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,305.68 : 76,893.72 = 43,702.48 : x
  2. Step 2: Convert to fraction form
    51,305.68/76,893.72 = 43,702.48/x
  3. Step 3: Cross multiply
    51,305.68x = 76,893.72 × 43,702.48
  4. Step 4: Simplify right side
    51,305.68x = 3,360,446,260.43
  5. Step 5: Solve for x
    x = 3,360,446,260.43/51,305.68
  6. Step 6: Final answer
    x = 65,498.52

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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.