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Finding the Fourth Proportional to 197,999.20, 296,998.80 and 186,335.20

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Solution

The fourth proportional to 197,999.20, 296,998.80 and 186,335.20 is: 279,502.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,999.20 : 296,998.80 = 186,335.20 : x
  2. Step 2: Convert to fraction form
    197,999.20/296,998.80 = 186,335.20/x
  3. Step 3: Cross multiply
    197,999.20x = 296,998.80 × 186,335.20
  4. Step 4: Simplify right side
    197,999.20x = 55,341,330,797.76
  5. Step 5: Solve for x
    x = 55,341,330,797.76/197,999.20
  6. Step 6: Final answer
    x = 279,502.80

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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.