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Finding the Fourth Proportional to 65,616.64, 98,208.96 and 46,604.80

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Solution

The fourth proportional to 65,616.64, 98,208.96 and 46,604.80 is: 69,753.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,616.64 : 98,208.96 = 46,604.80 : x
  2. Step 2: Convert to fraction form
    65,616.64/98,208.96 = 46,604.80/x
  3. Step 3: Cross multiply
    65,616.64x = 98,208.96 × 46,604.80
  4. Step 4: Simplify right side
    65,616.64x = 4,577,008,939.01
  5. Step 5: Solve for x
    x = 4,577,008,939.01/65,616.64
  6. Step 6: Final answer
    x = 69,753.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.