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Finding the Fourth Proportional to 448,605.12, 673,048.08 and 133,063.68

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Solution

The fourth proportional to 448,605.12, 673,048.08 and 133,063.68 is: 199,637.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,605.12 : 673,048.08 = 133,063.68 : x
  2. Step 2: Convert to fraction form
    448,605.12/673,048.08 = 133,063.68/x
  3. Step 3: Cross multiply
    448,605.12x = 673,048.08 × 133,063.68
  4. Step 4: Simplify right side
    448,605.12x = 89,558,254,341.73
  5. Step 5: Solve for x
    x = 89,558,254,341.73/448,605.12
  6. Step 6: Final answer
    x = 199,637.16

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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.