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Finding the Fourth Proportional to 222,518.56, 307,073.64 and 120,541.72

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Solution

The fourth proportional to 222,518.56, 307,073.64 and 120,541.72 is: 166,346.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,518.56 : 307,073.64 = 120,541.72 : x
  2. Step 2: Convert to fraction form
    222,518.56/307,073.64 = 120,541.72/x
  3. Step 3: Cross multiply
    222,518.56x = 307,073.64 × 120,541.72
  4. Step 4: Simplify right side
    222,518.56x = 37,015,184,732.26
  5. Step 5: Solve for x
    x = 37,015,184,732.26/222,518.56
  6. Step 6: Final answer
    x = 166,346.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.