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Finding the Fourth Proportional to 447,705.08, 671,630.58 and 132,193.88

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Solution

The fourth proportional to 447,705.08, 671,630.58 and 132,193.88 is: 198,312.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,705.08 : 671,630.58 = 132,193.88 : x
  2. Step 2: Convert to fraction form
    447,705.08/671,630.58 = 132,193.88/x
  3. Step 3: Cross multiply
    447,705.08x = 671,630.58 × 132,193.88
  4. Step 4: Simplify right side
    447,705.08x = 88,785,452,296.85
  5. Step 5: Solve for x
    x = 88,785,452,296.85/447,705.08
  6. Step 6: Final answer
    x = 198,312.36

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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.