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Finding the Fourth Proportional to 123,185.20, 184,486.20 and 83,527.60

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Solution

The fourth proportional to 123,185.20, 184,486.20 and 83,527.60 is: 125,093.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,185.20 : 184,486.20 = 83,527.60 : x
  2. Step 2: Convert to fraction form
    123,185.20/184,486.20 = 83,527.60/x
  3. Step 3: Cross multiply
    123,185.20x = 184,486.20 × 83,527.60
  4. Step 4: Simplify right side
    123,185.20x = 15,409,689,519.12
  5. Step 5: Solve for x
    x = 15,409,689,519.12/123,185.20
  6. Step 6: Final answer
    x = 125,093.68

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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.