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Finding the Fourth Proportional to 448,583.80, 672,878.22 and 133,043.08

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Solution

The fourth proportional to 448,583.80, 672,878.22 and 133,043.08 is: 199,565.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,583.80 : 672,878.22 = 133,043.08 : x
  2. Step 2: Convert to fraction form
    448,583.80/672,878.22 = 133,043.08/x
  3. Step 3: Cross multiply
    448,583.80x = 672,878.22 × 133,043.08
  4. Step 4: Simplify right side
    448,583.80x = 89,521,790,853.72
  5. Step 5: Solve for x
    x = 89,521,790,853.72/448,583.80
  6. Step 6: Final answer
    x = 199,565.37

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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.