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Finding the Fourth Proportional to 63,143.66, 87,135.53 and 34,462.59

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Solution

The fourth proportional to 63,143.66, 87,135.53 and 34,462.59 is: 47,556.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,143.66 : 87,135.53 = 34,462.59 : x
  2. Step 2: Convert to fraction form
    63,143.66/87,135.53 = 34,462.59/x
  3. Step 3: Cross multiply
    63,143.66x = 87,135.53 × 34,462.59
  4. Step 4: Simplify right side
    63,143.66x = 3,002,915,872.51
  5. Step 5: Solve for x
    x = 3,002,915,872.51/63,143.66
  6. Step 6: Final answer
    x = 47,556.89

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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.