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Finding the Fourth Proportional to 123,072.60, 184,608.90 and 117,823.80

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Solution

The fourth proportional to 123,072.60, 184,608.90 and 117,823.80 is: 176,735.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,072.60 : 184,608.90 = 117,823.80 : x
  2. Step 2: Convert to fraction form
    123,072.60/184,608.90 = 117,823.80/x
  3. Step 3: Cross multiply
    123,072.60x = 184,608.90 × 117,823.80
  4. Step 4: Simplify right side
    123,072.60x = 21,751,322,111.82
  5. Step 5: Solve for x
    x = 21,751,322,111.82/123,072.60
  6. Step 6: Final answer
    x = 176,735.70

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1.5x scale

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.