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Finding the Fourth Proportional to 96,687.40, 144,915.90 and 40,527.40

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Solution

The fourth proportional to 96,687.40, 144,915.90 and 40,527.40 is: 60,742.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,687.40 : 144,915.90 = 40,527.40 : x
  2. Step 2: Convert to fraction form
    96,687.40/144,915.90 = 40,527.40/x
  3. Step 3: Cross multiply
    96,687.40x = 144,915.90 × 40,527.40
  4. Step 4: Simplify right side
    96,687.40x = 5,873,064,645.66
  5. Step 5: Solve for x
    x = 5,873,064,645.66/96,687.40
  6. Step 6: Final answer
    x = 60,742.81

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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.