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Finding the Fourth Proportional to 447,407.76, 671,111.46 and 163,119.60

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Solution

The fourth proportional to 447,407.76, 671,111.46 and 163,119.60 is: 244,679.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,407.76 : 671,111.46 = 163,119.60 : x
  2. Step 2: Convert to fraction form
    447,407.76/671,111.46 = 163,119.60/x
  3. Step 3: Cross multiply
    447,407.76x = 671,111.46 × 163,119.60
  4. Step 4: Simplify right side
    447,407.76x = 109,471,432,910.62
  5. Step 5: Solve for x
    x = 109,471,432,910.62/447,407.76
  6. Step 6: Final answer
    x = 244,679.33

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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.