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Finding the Fourth Proportional to 67,467.80, 101,115.30 and 51,807.80

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Solution

The fourth proportional to 67,467.80, 101,115.30 and 51,807.80 is: 77,645.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,467.80 : 101,115.30 = 51,807.80 : x
  2. Step 2: Convert to fraction form
    67,467.80/101,115.30 = 51,807.80/x
  3. Step 3: Cross multiply
    67,467.80x = 101,115.30 × 51,807.80
  4. Step 4: Simplify right side
    67,467.80x = 5,238,561,239.34
  5. Step 5: Solve for x
    x = 5,238,561,239.34/67,467.80
  6. Step 6: Final answer
    x = 77,645.35

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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.