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Finding the Fourth Proportional to 447,585.99, 671,379.18 and 148,066.56

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Solution

The fourth proportional to 447,585.99, 671,379.18 and 148,066.56 is: 222,099.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,585.99 : 671,379.18 = 148,066.56 : x
  2. Step 2: Convert to fraction form
    447,585.99/671,379.18 = 148,066.56/x
  3. Step 3: Cross multiply
    447,585.99x = 671,379.18 × 148,066.56
  4. Step 4: Simplify right side
    447,585.99x = 99,408,805,638.22
  5. Step 5: Solve for x
    x = 99,408,805,638.22/447,585.99
  6. Step 6: Final answer
    x = 222,099.90

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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.