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Finding the Fourth Proportional to 144,759.56, 217,113.80 and 55,940.04

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Solution

The fourth proportional to 144,759.56, 217,113.80 and 55,940.04 is: 83,900.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,759.56 : 217,113.80 = 55,940.04 : x
  2. Step 2: Convert to fraction form
    144,759.56/217,113.80 = 55,940.04/x
  3. Step 3: Cross multiply
    144,759.56x = 217,113.80 × 55,940.04
  4. Step 4: Simplify right side
    144,759.56x = 12,145,354,376.85
  5. Step 5: Solve for x
    x = 12,145,354,376.85/144,759.56
  6. Step 6: Final answer
    x = 83,900.19

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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.