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Finding the Fourth Proportional to 65,604.97, 90,438.06 and 46,425.16

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Solution

The fourth proportional to 65,604.97, 90,438.06 and 46,425.16 is: 63,998.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,604.97 : 90,438.06 = 46,425.16 : x
  2. Step 2: Convert to fraction form
    65,604.97/90,438.06 = 46,425.16/x
  3. Step 3: Cross multiply
    65,604.97x = 90,438.06 × 46,425.16
  4. Step 4: Simplify right side
    65,604.97x = 4,198,601,405.59
  5. Step 5: Solve for x
    x = 4,198,601,405.59/65,604.97
  6. Step 6: Final answer
    x = 63,998.22

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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.