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Finding the Fourth Proportional to 330,992.48, 496,187.76 and 120,582.56

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Solution

The fourth proportional to 330,992.48, 496,187.76 and 120,582.56 is: 180,764.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,992.48 : 496,187.76 = 120,582.56 : x
  2. Step 2: Convert to fraction form
    330,992.48/496,187.76 = 120,582.56/x
  3. Step 3: Cross multiply
    330,992.48x = 496,187.76 × 120,582.56
  4. Step 4: Simplify right side
    330,992.48x = 59,831,590,341.47
  5. Step 5: Solve for x
    x = 59,831,590,341.47/330,992.48
  6. Step 6: Final answer
    x = 180,764.20

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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.