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Finding the Fourth Proportional to 323,712.73, 485,709.02 and 173,777.93

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Solution

The fourth proportional to 323,712.73, 485,709.02 and 173,777.93 is: 260,742.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,712.73 : 485,709.02 = 173,777.93 : x
  2. Step 2: Convert to fraction form
    323,712.73/485,709.02 = 173,777.93/x
  3. Step 3: Cross multiply
    323,712.73x = 485,709.02 × 173,777.93
  4. Step 4: Simplify right side
    323,712.73x = 84,405,508,077.93
  5. Step 5: Solve for x
    x = 84,405,508,077.93/323,712.73
  6. Step 6: Final answer
    x = 260,742.01

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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.