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Finding the Fourth Proportional to 168,308.20, 252,656.70 and 101,823.40

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Solution

The fourth proportional to 168,308.20, 252,656.70 and 101,823.40 is: 152,852.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,308.20 : 252,656.70 = 101,823.40 : x
  2. Step 2: Convert to fraction form
    168,308.20/252,656.70 = 101,823.40/x
  3. Step 3: Cross multiply
    168,308.20x = 252,656.70 × 101,823.40
  4. Step 4: Simplify right side
    168,308.20x = 25,726,364,226.78
  5. Step 5: Solve for x
    x = 25,726,364,226.78/168,308.20
  6. Step 6: Final answer
    x = 152,852.71

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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.