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Finding the Fourth Proportional to 316,976.16, 437,424.50 and 173,735.88

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Solution

The fourth proportional to 316,976.16, 437,424.50 and 173,735.88 is: 239,754.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,976.16 : 437,424.50 = 173,735.88 : x
  2. Step 2: Convert to fraction form
    316,976.16/437,424.50 = 173,735.88/x
  3. Step 3: Cross multiply
    316,976.16x = 437,424.50 × 173,735.88
  4. Step 4: Simplify right side
    316,976.16x = 75,996,330,441.06
  5. Step 5: Solve for x
    x = 75,996,330,441.06/316,976.16
  6. Step 6: Final answer
    x = 239,754.09

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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.