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Finding the Fourth Proportional to 367,315.44, 550,934.28 and 117,978

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Solution

The fourth proportional to 367,315.44, 550,934.28 and 117,978 is: 176,954.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,315.44 : 550,934.28 = 117,978 : x
  2. Step 2: Convert to fraction form
    367,315.44/550,934.28 = 117,978/x
  3. Step 3: Cross multiply
    367,315.44x = 550,934.28 × 117,978
  4. Step 4: Simplify right side
    367,315.44x = 64,998,124,485.84
  5. Step 5: Solve for x
    x = 64,998,124,485.84/367,315.44
  6. Step 6: Final answer
    x = 176,954.51

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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.