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Finding the Fourth Proportional to 168,903.20, 253,354.80 and 44,256.80

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Solution

The fourth proportional to 168,903.20, 253,354.80 and 44,256.80 is: 66,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,903.20 : 253,354.80 = 44,256.80 : x
  2. Step 2: Convert to fraction form
    168,903.20/253,354.80 = 44,256.80/x
  3. Step 3: Cross multiply
    168,903.20x = 253,354.80 × 44,256.80
  4. Step 4: Simplify right side
    168,903.20x = 11,212,672,712.64
  5. Step 5: Solve for x
    x = 11,212,672,712.64/168,903.20
  6. Step 6: Final answer
    x = 66,385.20

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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.