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Finding the Fourth Proportional to 244,485.28, 366,733.04 and 78,272.80

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Solution

The fourth proportional to 244,485.28, 366,733.04 and 78,272.80 is: 117,410.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,485.28 : 366,733.04 = 78,272.80 : x
  2. Step 2: Convert to fraction form
    244,485.28/366,733.04 = 78,272.80/x
  3. Step 3: Cross multiply
    244,485.28x = 366,733.04 × 78,272.80
  4. Step 4: Simplify right side
    244,485.28x = 28,705,221,893.31
  5. Step 5: Solve for x
    x = 28,705,221,893.31/244,485.28
  6. Step 6: Final answer
    x = 117,410.84

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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.