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Finding the Fourth Proportional to 251,718.85, 377,577.82 and 74,350.42

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Solution

The fourth proportional to 251,718.85, 377,577.82 and 74,350.42 is: 111,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,718.85 : 377,577.82 = 74,350.42 : x
  2. Step 2: Convert to fraction form
    251,718.85/377,577.82 = 74,350.42/x
  3. Step 3: Cross multiply
    251,718.85x = 377,577.82 × 74,350.42
  4. Step 4: Simplify right side
    251,718.85x = 28,073,069,499.68
  5. Step 5: Solve for x
    x = 28,073,069,499.68/251,718.85
  6. Step 6: Final answer
    x = 111,525.50

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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.