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Finding the Fourth Proportional to 201,206.60, 301,809.90 and 168,729.65

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Solution

The fourth proportional to 201,206.60, 301,809.90 and 168,729.65 is: 253,094.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,206.60 : 301,809.90 = 168,729.65 : x
  2. Step 2: Convert to fraction form
    201,206.60/301,809.90 = 168,729.65/x
  3. Step 3: Cross multiply
    201,206.60x = 301,809.90 × 168,729.65
  4. Step 4: Simplify right side
    201,206.60x = 50,924,278,793.54
  5. Step 5: Solve for x
    x = 50,924,278,793.54/201,206.60
  6. Step 6: Final answer
    x = 253,094.48

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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.