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Finding the Fourth Proportional to 64,826.80, 97,240.20 and 51,704.80

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Solution

The fourth proportional to 64,826.80, 97,240.20 and 51,704.80 is: 77,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,826.80 : 97,240.20 = 51,704.80 : x
  2. Step 2: Convert to fraction form
    64,826.80/97,240.20 = 51,704.80/x
  3. Step 3: Cross multiply
    64,826.80x = 97,240.20 × 51,704.80
  4. Step 4: Simplify right side
    64,826.80x = 5,027,785,092.96
  5. Step 5: Solve for x
    x = 5,027,785,092.96/64,826.80
  6. Step 6: Final answer
    x = 77,557.20

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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.