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Finding the Fourth Proportional to 63,940.56, 88,240.92 and 35,646.40

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Solution

The fourth proportional to 63,940.56, 88,240.92 and 35,646.40 is: 49,193.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,940.56 : 88,240.92 = 35,646.40 : x
  2. Step 2: Convert to fraction form
    63,940.56/88,240.92 = 35,646.40/x
  3. Step 3: Cross multiply
    63,940.56x = 88,240.92 × 35,646.40
  4. Step 4: Simplify right side
    63,940.56x = 3,145,471,130.69
  5. Step 5: Solve for x
    x = 3,145,471,130.69/63,940.56
  6. Step 6: Final answer
    x = 49,193.68

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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.