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Finding the Fourth Proportional to 63,164.81, 87,167.44 and 34,872.32

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Solution

The fourth proportional to 63,164.81, 87,167.44 and 34,872.32 is: 48,123.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,164.81 : 87,167.44 = 34,872.32 : x
  2. Step 2: Convert to fraction form
    63,164.81/87,167.44 = 34,872.32/x
  3. Step 3: Cross multiply
    63,164.81x = 87,167.44 × 34,872.32
  4. Step 4: Simplify right side
    63,164.81x = 3,039,731,122.77
  5. Step 5: Solve for x
    x = 3,039,731,122.77/63,164.81
  6. Step 6: Final answer
    x = 48,123.81

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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.