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Finding the Fourth Proportional to 272,309.80, 408,464.70 and 132,341.80

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Solution

The fourth proportional to 272,309.80, 408,464.70 and 132,341.80 is: 198,512.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,309.80 : 408,464.70 = 132,341.80 : x
  2. Step 2: Convert to fraction form
    272,309.80/408,464.70 = 132,341.80/x
  3. Step 3: Cross multiply
    272,309.80x = 408,464.70 × 132,341.80
  4. Step 4: Simplify right side
    272,309.80x = 54,056,953,634.46
  5. Step 5: Solve for x
    x = 54,056,953,634.46/272,309.80
  6. Step 6: Final answer
    x = 198,512.70

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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.