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Finding the Fourth Proportional to 358,783.44, 537,912.72 and 122,062.56

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Solution

The fourth proportional to 358,783.44, 537,912.72 and 122,062.56 is: 183,004.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,783.44 : 537,912.72 = 122,062.56 : x
  2. Step 2: Convert to fraction form
    358,783.44/537,912.72 = 122,062.56/x
  3. Step 3: Cross multiply
    358,783.44x = 537,912.72 × 122,062.56
  4. Step 4: Simplify right side
    358,783.44x = 65,659,003,659.76
  5. Step 5: Solve for x
    x = 65,659,003,659.76/358,783.44
  6. Step 6: Final answer
    x = 183,004.55

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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.