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Finding the Fourth Proportional to 354,388.76, 531,585.20 and 88,149.32

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Solution

The fourth proportional to 354,388.76, 531,585.20 and 88,149.32 is: 132,224.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,388.76 : 531,585.20 = 88,149.32 : x
  2. Step 2: Convert to fraction form
    354,388.76/531,585.20 = 88,149.32/x
  3. Step 3: Cross multiply
    354,388.76x = 531,585.20 × 88,149.32
  4. Step 4: Simplify right side
    354,388.76x = 46,858,873,902.06
  5. Step 5: Solve for x
    x = 46,858,873,902.06/354,388.76
  6. Step 6: Final answer
    x = 132,224.49

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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.