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Finding the Fourth Proportional to 448,590.80, 673,015.80 and 133,055.30

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Solution

The fourth proportional to 448,590.80, 673,015.80 and 133,055.30 is: 199,621.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,590.80 : 673,015.80 = 133,055.30 : x
  2. Step 2: Convert to fraction form
    448,590.80/673,015.80 = 133,055.30/x
  3. Step 3: Cross multiply
    448,590.80x = 673,015.80 × 133,055.30
  4. Step 4: Simplify right side
    448,590.80x = 89,548,319,173.74
  5. Step 5: Solve for x
    x = 89,548,319,173.74/448,590.80
  6. Step 6: Final answer
    x = 199,621.39

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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.