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Finding the Fourth Proportional to 299,851.80, 413,794.50 and 163,885.74

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Solution

The fourth proportional to 299,851.80, 413,794.50 and 163,885.74 is: 226,161.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,851.80 : 413,794.50 = 163,885.74 : x
  2. Step 2: Convert to fraction form
    299,851.80/413,794.50 = 163,885.74/x
  3. Step 3: Cross multiply
    299,851.80x = 413,794.50 × 163,885.74
  4. Step 4: Simplify right side
    299,851.80x = 67,815,017,840.43
  5. Step 5: Solve for x
    x = 67,815,017,840.43/299,851.80
  6. Step 6: Final answer
    x = 226,161.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.