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Finding the Fourth Proportional to 63,127.92, 87,116.49 and 40,466.90

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Solution

The fourth proportional to 63,127.92, 87,116.49 and 40,466.90 is: 55,844.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,127.92 : 87,116.49 = 40,466.90 : x
  2. Step 2: Convert to fraction form
    63,127.92/87,116.49 = 40,466.90/x
  3. Step 3: Cross multiply
    63,127.92x = 87,116.49 × 40,466.90
  4. Step 4: Simplify right side
    63,127.92x = 3,525,334,289.18
  5. Step 5: Solve for x
    x = 3,525,334,289.18/63,127.92
  6. Step 6: Final answer
    x = 55,844.30

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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.