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Finding the Fourth Proportional to 374,454.60, 516,621.24 and 213,195.60

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Solution

The fourth proportional to 374,454.60, 516,621.24 and 213,195.60 is: 294,138.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,454.60 : 516,621.24 = 213,195.60 : x
  2. Step 2: Convert to fraction form
    374,454.60/516,621.24 = 213,195.60/x
  3. Step 3: Cross multiply
    374,454.60x = 516,621.24 × 213,195.60
  4. Step 4: Simplify right side
    374,454.60x = 110,141,375,234.54
  5. Step 5: Solve for x
    x = 110,141,375,234.54/374,454.60
  6. Step 6: Final answer
    x = 294,138.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.