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Finding the Fourth Proportional to 115,997.88, 173,996.82 and 28,445.88

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Solution

The fourth proportional to 115,997.88, 173,996.82 and 28,445.88 is: 42,668.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,997.88 : 173,996.82 = 28,445.88 : x
  2. Step 2: Convert to fraction form
    115,997.88/173,996.82 = 28,445.88/x
  3. Step 3: Cross multiply
    115,997.88x = 173,996.82 × 28,445.88
  4. Step 4: Simplify right side
    115,997.88x = 4,949,492,662.10
  5. Step 5: Solve for x
    x = 4,949,492,662.10/115,997.88
  6. Step 6: Final answer
    x = 42,668.82

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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.