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Finding the Fourth Proportional to 331,094.40, 496,641.60 and 131,462.40

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Solution

The fourth proportional to 331,094.40, 496,641.60 and 131,462.40 is: 197,193.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,094.40 : 496,641.60 = 131,462.40 : x
  2. Step 2: Convert to fraction form
    331,094.40/496,641.60 = 131,462.40/x
  3. Step 3: Cross multiply
    331,094.40x = 496,641.60 × 131,462.40
  4. Step 4: Simplify right side
    331,094.40x = 65,289,696,675.84
  5. Step 5: Solve for x
    x = 65,289,696,675.84/331,094.40
  6. Step 6: Final answer
    x = 197,193.60

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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.