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Finding the Fourth Proportional to 447,508.26, 671,164.92 and 147,917.88

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Solution

The fourth proportional to 447,508.26, 671,164.92 and 147,917.88 is: 221,844.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,508.26 : 671,164.92 = 147,917.88 : x
  2. Step 2: Convert to fraction form
    447,508.26/671,164.92 = 147,917.88/x
  3. Step 3: Cross multiply
    447,508.26x = 671,164.92 × 147,917.88
  4. Step 4: Simplify right side
    447,508.26x = 99,277,292,096.77
  5. Step 5: Solve for x
    x = 99,277,292,096.77/447,508.26
  6. Step 6: Final answer
    x = 221,844.60

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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.