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Finding the Fourth Proportional to 96,571.85, 144,828.13 and 66,777.53

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Solution

The fourth proportional to 96,571.85, 144,828.13 and 66,777.53 is: 100,145.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,571.85 : 144,828.13 = 66,777.53 : x
  2. Step 2: Convert to fraction form
    96,571.85/144,828.13 = 66,777.53/x
  3. Step 3: Cross multiply
    96,571.85x = 144,828.13 × 66,777.53
  4. Step 4: Simplify right side
    96,571.85x = 9,671,263,904.83
  5. Step 5: Solve for x
    x = 9,671,263,904.83/96,571.85
  6. Step 6: Final answer
    x = 100,145.78

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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.