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Finding the Fourth Proportional to 63,160.21, 87,161.09 and 34,865.90

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Solution

The fourth proportional to 63,160.21, 87,161.09 and 34,865.90 is: 48,114.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,160.21 : 87,161.09 = 34,865.90 : x
  2. Step 2: Convert to fraction form
    63,160.21/87,161.09 = 34,865.90/x
  3. Step 3: Cross multiply
    63,160.21x = 87,161.09 × 34,865.90
  4. Step 4: Simplify right side
    63,160.21x = 3,038,949,847.83
  5. Step 5: Solve for x
    x = 3,038,949,847.83/63,160.21
  6. Step 6: Final answer
    x = 48,114.94

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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.