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Finding the Fourth Proportional to 215,622.40, 323,433.60 and 184,129.60

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Solution

The fourth proportional to 215,622.40, 323,433.60 and 184,129.60 is: 276,194.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,622.40 : 323,433.60 = 184,129.60 : x
  2. Step 2: Convert to fraction form
    215,622.40/323,433.60 = 184,129.60/x
  3. Step 3: Cross multiply
    215,622.40x = 323,433.60 × 184,129.60
  4. Step 4: Simplify right side
    215,622.40x = 59,553,699,394.56
  5. Step 5: Solve for x
    x = 59,553,699,394.56/215,622.40
  6. Step 6: Final answer
    x = 276,194.40

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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.