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Finding the Fourth Proportional to 448,681.77, 673,022.94 and 133,135.89

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Solution

The fourth proportional to 448,681.77, 673,022.94 and 133,135.89 is: 199,703.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,681.77 : 673,022.94 = 133,135.89 : x
  2. Step 2: Convert to fraction form
    448,681.77/673,022.94 = 133,135.89/x
  3. Step 3: Cross multiply
    448,681.77x = 673,022.94 × 133,135.89
  4. Step 4: Simplify right side
    448,681.77x = 89,603,508,107.32
  5. Step 5: Solve for x
    x = 89,603,508,107.32/448,681.77
  6. Step 6: Final answer
    x = 199,703.92

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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.