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Finding the Fourth Proportional to 387,158.94, 580,774.32 and 150,519.60

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Solution

The fourth proportional to 387,158.94, 580,774.32 and 150,519.60 is: 225,793.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,158.94 : 580,774.32 = 150,519.60 : x
  2. Step 2: Convert to fraction form
    387,158.94/580,774.32 = 150,519.60/x
  3. Step 3: Cross multiply
    387,158.94x = 580,774.32 × 150,519.60
  4. Step 4: Simplify right side
    387,158.94x = 87,417,918,336.67
  5. Step 5: Solve for x
    x = 87,417,918,336.67/387,158.94
  6. Step 6: Final answer
    x = 225,793.36

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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.