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Finding the Fourth Proportional to 316,754.70, 437,121.57 and 173,519.88

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Solution

The fourth proportional to 316,754.70, 437,121.57 and 173,519.88 is: 239,457.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,754.70 : 437,121.57 = 173,519.88 : x
  2. Step 2: Convert to fraction form
    316,754.70/437,121.57 = 173,519.88/x
  3. Step 3: Cross multiply
    316,754.70x = 437,121.57 × 173,519.88
  4. Step 4: Simplify right side
    316,754.70x = 75,849,282,371.81
  5. Step 5: Solve for x
    x = 75,849,282,371.81/316,754.70
  6. Step 6: Final answer
    x = 239,457.48

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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.