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Finding the Fourth Proportional to 447,067.96, 670,536.30 and 147,558.34

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Solution

The fourth proportional to 447,067.96, 670,536.30 and 147,558.34 is: 221,315.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,067.96 : 670,536.30 = 147,558.34 : x
  2. Step 2: Convert to fraction form
    447,067.96/670,536.30 = 147,558.34/x
  3. Step 3: Cross multiply
    447,067.96x = 670,536.30 × 147,558.34
  4. Step 4: Simplify right side
    447,067.96x = 98,943,223,337.74
  5. Step 5: Solve for x
    x = 98,943,223,337.74/447,067.96
  6. Step 6: Final answer
    x = 221,315.84

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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.