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Finding the Fourth Proportional to 222,453.52, 306,985.59 and 120,478.92

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Solution

The fourth proportional to 222,453.52, 306,985.59 and 120,478.92 is: 166,260.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,453.52 : 306,985.59 = 120,478.92 : x
  2. Step 2: Convert to fraction form
    222,453.52/306,985.59 = 120,478.92/x
  3. Step 3: Cross multiply
    222,453.52x = 306,985.59 × 120,478.92
  4. Step 4: Simplify right side
    222,453.52x = 36,985,292,338.76
  5. Step 5: Solve for x
    x = 36,985,292,338.76/222,453.52
  6. Step 6: Final answer
    x = 166,260.76

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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.