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Finding the Fourth Proportional to 131,998.40, 197,608.80 and 124,308.80

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Solution

The fourth proportional to 131,998.40, 197,608.80 and 124,308.80 is: 186,097.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,998.40 : 197,608.80 = 124,308.80 : x
  2. Step 2: Convert to fraction form
    131,998.40/197,608.80 = 124,308.80/x
  3. Step 3: Cross multiply
    131,998.40x = 197,608.80 × 124,308.80
  4. Step 4: Simplify right side
    131,998.40x = 24,564,512,797.44
  5. Step 5: Solve for x
    x = 24,564,512,797.44/131,998.40
  6. Step 6: Final answer
    x = 186,097.05

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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.