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Finding the Fourth Proportional to 302,620.39, 417,617.38 and 173,563.84

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Solution

The fourth proportional to 302,620.39, 417,617.38 and 173,563.84 is: 239,518.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,620.39 : 417,617.38 = 173,563.84 : x
  2. Step 2: Convert to fraction form
    302,620.39/417,617.38 = 173,563.84/x
  3. Step 3: Cross multiply
    302,620.39x = 417,617.38 × 173,563.84
  4. Step 4: Simplify right side
    302,620.39x = 72,483,276,862.52
  5. Step 5: Solve for x
    x = 72,483,276,862.52/302,620.39
  6. Step 6: Final answer
    x = 239,518.82

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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.