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Finding the Fourth Proportional to 168,819.63, 253,300.50 and 74,000.86

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Solution

The fourth proportional to 168,819.63, 253,300.50 and 74,000.86 is: 111,032.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,819.63 : 253,300.50 = 74,000.86 : x
  2. Step 2: Convert to fraction form
    168,819.63/253,300.50 = 74,000.86/x
  3. Step 3: Cross multiply
    168,819.63x = 253,300.50 × 74,000.86
  4. Step 4: Simplify right side
    168,819.63x = 18,744,454,205.18
  5. Step 5: Solve for x
    x = 18,744,454,205.18/168,819.63
  6. Step 6: Final answer
    x = 111,032.44

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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.