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Finding the Fourth Proportional to 276,591.51, 415,060.20 and 118,819.44

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Solution

The fourth proportional to 276,591.51, 415,060.20 and 118,819.44 is: 178,303.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,591.51 : 415,060.20 = 118,819.44 : x
  2. Step 2: Convert to fraction form
    276,591.51/415,060.20 = 118,819.44/x
  3. Step 3: Cross multiply
    276,591.51x = 415,060.20 × 118,819.44
  4. Step 4: Simplify right side
    276,591.51x = 49,317,220,530.29
  5. Step 5: Solve for x
    x = 49,317,220,530.29/276,591.51
  6. Step 6: Final answer
    x = 178,303.45

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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.