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Finding the Fourth Proportional to 251,416, 377,050.18 and 73,880.80

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Solution

The fourth proportional to 251,416, 377,050.18 and 73,880.80 is: 110,799.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,416 : 377,050.18 = 73,880.80 : x
  2. Step 2: Convert to fraction form
    251,416/377,050.18 = 73,880.80/x
  3. Step 3: Cross multiply
    251,416x = 377,050.18 × 73,880.80
  4. Step 4: Simplify right side
    251,416x = 27,856,768,938.54
  5. Step 5: Solve for x
    x = 27,856,768,938.54/251,416
  6. Step 6: Final answer
    x = 110,799.51

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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.