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Finding the Fourth Proportional to 448,675.77, 673,013.94 and 133,129.89

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Solution

The fourth proportional to 448,675.77, 673,013.94 and 133,129.89 is: 199,694.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,675.77 : 673,013.94 = 133,129.89 : x
  2. Step 2: Convert to fraction form
    448,675.77/673,013.94 = 133,129.89/x
  3. Step 3: Cross multiply
    448,675.77x = 673,013.94 × 133,129.89
  4. Step 4: Simplify right side
    448,675.77x = 89,598,271,800.67
  5. Step 5: Solve for x
    x = 89,598,271,800.67/448,675.77
  6. Step 6: Final answer
    x = 199,694.92

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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.