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Finding the Fourth Proportional to 273,437.20, 410,155.80 and 251,785.90

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Solution

The fourth proportional to 273,437.20, 410,155.80 and 251,785.90 is: 377,678.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,437.20 : 410,155.80 = 251,785.90 : x
  2. Step 2: Convert to fraction form
    273,437.20/410,155.80 = 251,785.90/x
  3. Step 3: Cross multiply
    273,437.20x = 410,155.80 × 251,785.90
  4. Step 4: Simplify right side
    273,437.20x = 103,271,447,243.22
  5. Step 5: Solve for x
    x = 103,271,447,243.22/273,437.20
  6. Step 6: Final answer
    x = 377,678.85

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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.