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Finding the Fourth Proportional to 316,718.05, 475,123.44 and 92,049.29

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Solution

The fourth proportional to 316,718.05, 475,123.44 and 92,049.29 is: 138,087.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,718.05 : 475,123.44 = 92,049.29 : x
  2. Step 2: Convert to fraction form
    316,718.05/475,123.44 = 92,049.29/x
  3. Step 3: Cross multiply
    316,718.05x = 475,123.44 × 92,049.29
  4. Step 4: Simplify right side
    316,718.05x = 43,734,775,314.36
  5. Step 5: Solve for x
    x = 43,734,775,314.36/316,718.05
  6. Step 6: Final answer
    x = 138,087.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.