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Finding the Fourth Proportional to 448,428.96, 672,624 and 111,462.48

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Solution

The fourth proportional to 448,428.96, 672,624 and 111,462.48 is: 167,188.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,428.96 : 672,624 = 111,462.48 : x
  2. Step 2: Convert to fraction form
    448,428.96/672,624 = 111,462.48/x
  3. Step 3: Cross multiply
    448,428.96x = 672,624 × 111,462.48
  4. Step 4: Simplify right side
    448,428.96x = 74,972,339,147.52
  5. Step 5: Solve for x
    x = 74,972,339,147.52/448,428.96
  6. Step 6: Final answer
    x = 167,188.89

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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.