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Finding the Fourth Proportional to 170,936.64, 256,448.88 and 122,960.64

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Solution

The fourth proportional to 170,936.64, 256,448.88 and 122,960.64 is: 184,472.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,936.64 : 256,448.88 = 122,960.64 : x
  2. Step 2: Convert to fraction form
    170,936.64/256,448.88 = 122,960.64/x
  3. Step 3: Cross multiply
    170,936.64x = 256,448.88 × 122,960.64
  4. Step 4: Simplify right side
    170,936.64x = 31,533,118,412.08
  5. Step 5: Solve for x
    x = 31,533,118,412.08/170,936.64
  6. Step 6: Final answer
    x = 184,472.55

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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.