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Finding the Fourth Proportional to 216,436.60, 298,676.77 and 120,944.08

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Solution

The fourth proportional to 216,436.60, 298,676.77 and 120,944.08 is: 166,899.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,436.60 : 298,676.77 = 120,944.08 : x
  2. Step 2: Convert to fraction form
    216,436.60/298,676.77 = 120,944.08/x
  3. Step 3: Cross multiply
    216,436.60x = 298,676.77 × 120,944.08
  4. Step 4: Simplify right side
    216,436.60x = 36,123,187,165.02
  5. Step 5: Solve for x
    x = 36,123,187,165.02/216,436.60
  6. Step 6: Final answer
    x = 166,899.62

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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.