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Finding the Fourth Proportional to 354,388.74, 531,585.18 and 88,149.30

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Solution

The fourth proportional to 354,388.74, 531,585.18 and 88,149.30 is: 132,224.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,388.74 : 531,585.18 = 88,149.30 : x
  2. Step 2: Convert to fraction form
    354,388.74/531,585.18 = 88,149.30/x
  3. Step 3: Cross multiply
    354,388.74x = 531,585.18 × 88,149.30
  4. Step 4: Simplify right side
    354,388.74x = 46,858,861,507.37
  5. Step 5: Solve for x
    x = 46,858,861,507.37/354,388.74
  6. Step 6: Final answer
    x = 132,224.46

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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.