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Finding the Fourth Proportional to 251,703.88, 377,568.84 and 91,776.10

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Solution

The fourth proportional to 251,703.88, 377,568.84 and 91,776.10 is: 137,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,703.88 : 377,568.84 = 91,776.10 : x
  2. Step 2: Convert to fraction form
    251,703.88/377,568.84 = 91,776.10/x
  3. Step 3: Cross multiply
    251,703.88x = 377,568.84 × 91,776.10
  4. Step 4: Simplify right side
    251,703.88x = 34,651,795,616.72
  5. Step 5: Solve for x
    x = 34,651,795,616.72/251,703.88
  6. Step 6: Final answer
    x = 137,668.90

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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.