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Finding the Fourth Proportional to 63,118.78, 87,102.75 and 34,823.86

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Solution

The fourth proportional to 63,118.78, 87,102.75 and 34,823.86 is: 48,056.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,118.78 : 87,102.75 = 34,823.86 : x
  2. Step 2: Convert to fraction form
    63,118.78/87,102.75 = 34,823.86/x
  3. Step 3: Cross multiply
    63,118.78x = 87,102.75 × 34,823.86
  4. Step 4: Simplify right side
    63,118.78x = 3,033,253,971.62
  5. Step 5: Solve for x
    x = 3,033,253,971.62/63,118.78
  6. Step 6: Final answer
    x = 48,056.28

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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.