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Finding the Fourth Proportional to 64,309.62, 96,429.63 and 51,067.80

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Solution

The fourth proportional to 64,309.62, 96,429.63 and 51,067.80 is: 76,574.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,309.62 : 96,429.63 = 51,067.80 : x
  2. Step 2: Convert to fraction form
    64,309.62/96,429.63 = 51,067.80/x
  3. Step 3: Cross multiply
    64,309.62x = 96,429.63 × 51,067.80
  4. Step 4: Simplify right side
    64,309.62x = 4,924,449,058.91
  5. Step 5: Solve for x
    x = 4,924,449,058.91/64,309.62
  6. Step 6: Final answer
    x = 76,574.07

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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.