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Finding the Fourth Proportional to 74,832.48, 103,033.08 and 63,478.44

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Solution

The fourth proportional to 74,832.48, 103,033.08 and 63,478.44 is: 87,400.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,832.48 : 103,033.08 = 63,478.44 : x
  2. Step 2: Convert to fraction form
    74,832.48/103,033.08 = 63,478.44/x
  3. Step 3: Cross multiply
    74,832.48x = 103,033.08 × 63,478.44
  4. Step 4: Simplify right side
    74,832.48x = 6,540,379,186.80
  5. Step 5: Solve for x
    x = 6,540,379,186.80/74,832.48
  6. Step 6: Final answer
    x = 87,400.27

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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.