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Finding the Fourth Proportional to 198,659.60, 297,992.64 and 48,900.32

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Solution

The fourth proportional to 198,659.60, 297,992.64 and 48,900.32 is: 73,351.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,659.60 : 297,992.64 = 48,900.32 : x
  2. Step 2: Convert to fraction form
    198,659.60/297,992.64 = 48,900.32/x
  3. Step 3: Cross multiply
    198,659.60x = 297,992.64 × 48,900.32
  4. Step 4: Simplify right side
    198,659.60x = 14,571,935,453.64
  5. Step 5: Solve for x
    x = 14,571,935,453.64/198,659.60
  6. Step 6: Final answer
    x = 73,351.28

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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.