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Finding the Fourth Proportional to 172,829.80, 259,244.70 and 48,170.80

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Solution

The fourth proportional to 172,829.80, 259,244.70 and 48,170.80 is: 72,256.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,829.80 : 259,244.70 = 48,170.80 : x
  2. Step 2: Convert to fraction form
    172,829.80/259,244.70 = 48,170.80/x
  3. Step 3: Cross multiply
    172,829.80x = 259,244.70 × 48,170.80
  4. Step 4: Simplify right side
    172,829.80x = 12,488,024,594.76
  5. Step 5: Solve for x
    x = 12,488,024,594.76/172,829.80
  6. Step 6: Final answer
    x = 72,256.20

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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.