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Finding the Fourth Proportional to 89,044.80, 122,843.52 and 51,296.64

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Solution

The fourth proportional to 89,044.80, 122,843.52 and 51,296.64 is: 70,767.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,044.80 : 122,843.52 = 51,296.64 : x
  2. Step 2: Convert to fraction form
    89,044.80/122,843.52 = 51,296.64/x
  3. Step 3: Cross multiply
    89,044.80x = 122,843.52 × 51,296.64
  4. Step 4: Simplify right side
    89,044.80x = 6,301,459,821.77
  5. Step 5: Solve for x
    x = 6,301,459,821.77/89,044.80
  6. Step 6: Final answer
    x = 70,767.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.