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Finding the Fourth Proportional to 316,181.13, 474,236.76 and 79,523.90

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Solution

The fourth proportional to 316,181.13, 474,236.76 and 79,523.90 is: 119,277.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,181.13 : 474,236.76 = 79,523.90 : x
  2. Step 2: Convert to fraction form
    316,181.13/474,236.76 = 79,523.90/x
  3. Step 3: Cross multiply
    316,181.13x = 474,236.76 × 79,523.90
  4. Step 4: Simplify right side
    316,181.13x = 37,713,156,678.56
  5. Step 5: Solve for x
    x = 37,713,156,678.56/316,181.13
  6. Step 6: Final answer
    x = 119,277.06

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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.