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Finding the Fourth Proportional to 476,859.87, 715,290.08 and 121,874.22

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Solution

The fourth proportional to 476,859.87, 715,290.08 and 121,874.22 is: 182,811.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,859.87 : 715,290.08 = 121,874.22 : x
  2. Step 2: Convert to fraction form
    476,859.87/715,290.08 = 121,874.22/x
  3. Step 3: Cross multiply
    476,859.87x = 715,290.08 × 121,874.22
  4. Step 4: Simplify right side
    476,859.87x = 87,175,419,964.37
  5. Step 5: Solve for x
    x = 87,175,419,964.37/476,859.87
  6. Step 6: Final answer
    x = 182,811.40

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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.