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Finding the Fourth Proportional to 171,936.60, 257,999.04 and 66,759.72

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Solution

The fourth proportional to 171,936.60, 257,999.04 and 66,759.72 is: 100,176.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,936.60 : 257,999.04 = 66,759.72 : x
  2. Step 2: Convert to fraction form
    171,936.60/257,999.04 = 66,759.72/x
  3. Step 3: Cross multiply
    171,936.60x = 257,999.04 × 66,759.72
  4. Step 4: Simplify right side
    171,936.60x = 17,223,943,670.67
  5. Step 5: Solve for x
    x = 17,223,943,670.67/171,936.60
  6. Step 6: Final answer
    x = 100,176.13

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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.