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Finding the Fourth Proportional to 447,404.88, 671,212.43 and 147,885.48

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Solution

The fourth proportional to 447,404.88, 671,212.43 and 147,885.48 is: 221,862.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,404.88 : 671,212.43 = 147,885.48 : x
  2. Step 2: Convert to fraction form
    447,404.88/671,212.43 = 147,885.48/x
  3. Step 3: Cross multiply
    447,404.88x = 671,212.43 × 147,885.48
  4. Step 4: Simplify right side
    447,404.88x = 99,262,572,392.52
  5. Step 5: Solve for x
    x = 99,262,572,392.52/447,404.88
  6. Step 6: Final answer
    x = 221,862.96

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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.