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Finding the Fourth Proportional to 251,190.72, 376,465.32 and 117,776.88

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Solution

The fourth proportional to 251,190.72, 376,465.32 and 117,776.88 is: 176,514.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,190.72 : 376,465.32 = 117,776.88 : x
  2. Step 2: Convert to fraction form
    251,190.72/376,465.32 = 117,776.88/x
  3. Step 3: Cross multiply
    251,190.72x = 376,465.32 × 117,776.88
  4. Step 4: Simplify right side
    251,190.72x = 44,338,910,817.80
  5. Step 5: Solve for x
    x = 44,338,910,817.80/251,190.72
  6. Step 6: Final answer
    x = 176,514.92

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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.