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Finding the Fourth Proportional to 68,878.55, 95,056.03 and 38,662.31

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Solution

The fourth proportional to 68,878.55, 95,056.03 and 38,662.31 is: 53,356.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,878.55 : 95,056.03 = 38,662.31 : x
  2. Step 2: Convert to fraction form
    68,878.55/95,056.03 = 38,662.31/x
  3. Step 3: Cross multiply
    68,878.55x = 95,056.03 × 38,662.31
  4. Step 4: Simplify right side
    68,878.55x = 3,675,085,985.20
  5. Step 5: Solve for x
    x = 3,675,085,985.20/68,878.55
  6. Step 6: Final answer
    x = 53,356.03

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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.