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Finding the Fourth Proportional to 251,106.30, 376,659.45 and 156,627.90

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Solution

The fourth proportional to 251,106.30, 376,659.45 and 156,627.90 is: 234,941.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,106.30 : 376,659.45 = 156,627.90 : x
  2. Step 2: Convert to fraction form
    251,106.30/376,659.45 = 156,627.90/x
  3. Step 3: Cross multiply
    251,106.30x = 376,659.45 × 156,627.90
  4. Step 4: Simplify right side
    251,106.30x = 58,995,378,668.66
  5. Step 5: Solve for x
    x = 58,995,378,668.66/251,106.30
  6. Step 6: Final answer
    x = 234,941.85

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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.