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Finding the Fourth Proportional to 168,227.20, 252,110.40 and 137,123.20

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Solution

The fourth proportional to 168,227.20, 252,110.40 and 137,123.20 is: 205,497.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,227.20 : 252,110.40 = 137,123.20 : x
  2. Step 2: Convert to fraction form
    168,227.20/252,110.40 = 137,123.20/x
  3. Step 3: Cross multiply
    168,227.20x = 252,110.40 × 137,123.20
  4. Step 4: Simplify right side
    168,227.20x = 34,570,184,801.28
  5. Step 5: Solve for x
    x = 34,570,184,801.28/168,227.20
  6. Step 6: Final answer
    x = 205,497.00

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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.