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Finding the Fourth Proportional to 279,175.10, 418,762.65 and 167,200.70

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Solution

The fourth proportional to 279,175.10, 418,762.65 and 167,200.70 is: 250,801.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,175.10 : 418,762.65 = 167,200.70 : x
  2. Step 2: Convert to fraction form
    279,175.10/418,762.65 = 167,200.70/x
  3. Step 3: Cross multiply
    279,175.10x = 418,762.65 × 167,200.70
  4. Step 4: Simplify right side
    279,175.10x = 70,017,408,213.86
  5. Step 5: Solve for x
    x = 70,017,408,213.86/279,175.10
  6. Step 6: Final answer
    x = 250,801.05

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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.