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Finding the Fourth Proportional to 316,186.31, 474,244.54 and 79,529.09

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Solution

The fourth proportional to 316,186.31, 474,244.54 and 79,529.09 is: 119,284.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,186.31 : 474,244.54 = 79,529.09 : x
  2. Step 2: Convert to fraction form
    316,186.31/474,244.54 = 79,529.09/x
  3. Step 3: Cross multiply
    316,186.31x = 474,244.54 × 79,529.09
  4. Step 4: Simplify right side
    316,186.31x = 37,716,234,133.62
  5. Step 5: Solve for x
    x = 37,716,234,133.62/316,186.31
  6. Step 6: Final answer
    x = 119,284.84

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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.