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Finding the Fourth Proportional to 235,390.46, 353,003.87 and 100,449.11

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Solution

The fourth proportional to 235,390.46, 353,003.87 and 100,449.11 is: 150,638.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,390.46 : 353,003.87 = 100,449.11 : x
  2. Step 2: Convert to fraction form
    235,390.46/353,003.87 = 100,449.11/x
  3. Step 3: Cross multiply
    235,390.46x = 353,003.87 × 100,449.11
  4. Step 4: Simplify right side
    235,390.46x = 35,458,925,701.69
  5. Step 5: Solve for x
    x = 35,458,925,701.69/235,390.46
  6. Step 6: Final answer
    x = 150,638.76

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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.