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Finding the Fourth Proportional to 123,207.60, 184,811.40 and 73,311.60

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Solution

The fourth proportional to 123,207.60, 184,811.40 and 73,311.60 is: 109,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,207.60 : 184,811.40 = 73,311.60 : x
  2. Step 2: Convert to fraction form
    123,207.60/184,811.40 = 73,311.60/x
  3. Step 3: Cross multiply
    123,207.60x = 184,811.40 × 73,311.60
  4. Step 4: Simplify right side
    123,207.60x = 13,548,819,432.24
  5. Step 5: Solve for x
    x = 13,548,819,432.24/123,207.60
  6. Step 6: Final answer
    x = 109,967.40

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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.