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Finding the Fourth Proportional to 96,723.40, 144,969.90 and 40,563.40

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Solution

The fourth proportional to 96,723.40, 144,969.90 and 40,563.40 is: 60,796.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,723.40 : 144,969.90 = 40,563.40 : x
  2. Step 2: Convert to fraction form
    96,723.40/144,969.90 = 40,563.40/x
  3. Step 3: Cross multiply
    96,723.40x = 144,969.90 × 40,563.40
  4. Step 4: Simplify right side
    96,723.40x = 5,880,472,041.66
  5. Step 5: Solve for x
    x = 5,880,472,041.66/96,723.40
  6. Step 6: Final answer
    x = 60,796.79

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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.