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Finding the Fourth Proportional to 305,846.52, 422,068.20 and 171,710.52

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Solution

The fourth proportional to 305,846.52, 422,068.20 and 171,710.52 is: 236,960.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,846.52 : 422,068.20 = 171,710.52 : x
  2. Step 2: Convert to fraction form
    305,846.52/422,068.20 = 171,710.52/x
  3. Step 3: Cross multiply
    305,846.52x = 422,068.20 × 171,710.52
  4. Step 4: Simplify right side
    305,846.52x = 72,473,550,097.46
  5. Step 5: Solve for x
    x = 72,473,550,097.46/305,846.52
  6. Step 6: Final answer
    x = 236,960.52

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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.