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Finding the Fourth Proportional to 302,358.48, 417,271.94 and 173,318.42

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Solution

The fourth proportional to 302,358.48, 417,271.94 and 173,318.42 is: 239,189.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,358.48 : 417,271.94 = 173,318.42 : x
  2. Step 2: Convert to fraction form
    302,358.48/417,271.94 = 173,318.42/x
  3. Step 3: Cross multiply
    302,358.48x = 417,271.94 × 173,318.42
  4. Step 4: Simplify right side
    302,358.48x = 72,320,910,398.18
  5. Step 5: Solve for x
    x = 72,320,910,398.18/302,358.48
  6. Step 6: Final answer
    x = 239,189.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.