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Finding the Fourth Proportional to 325,621.68, 488,599.31 and 155,036.44

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Solution

The fourth proportional to 325,621.68, 488,599.31 and 155,036.44 is: 232,634.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,621.68 : 488,599.31 = 155,036.44 : x
  2. Step 2: Convert to fraction form
    325,621.68/488,599.31 = 155,036.44/x
  3. Step 3: Cross multiply
    325,621.68x = 488,599.31 × 155,036.44
  4. Step 4: Simplify right side
    325,621.68x = 75,750,697,608.86
  5. Step 5: Solve for x
    x = 75,750,697,608.86/325,621.68
  6. Step 6: Final answer
    x = 232,634.07

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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.