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Finding the Fourth Proportional to 353,245.68, 529,868.66 and 87,011.37

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Solution

The fourth proportional to 353,245.68, 529,868.66 and 87,011.37 is: 130,517.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,245.68 : 529,868.66 = 87,011.37 : x
  2. Step 2: Convert to fraction form
    353,245.68/529,868.66 = 87,011.37/x
  3. Step 3: Cross multiply
    353,245.68x = 529,868.66 × 87,011.37
  4. Step 4: Simplify right side
    353,245.68x = 46,104,597,591.61
  5. Step 5: Solve for x
    x = 46,104,597,591.61/353,245.68
  6. Step 6: Final answer
    x = 130,517.09

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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.