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Finding the Fourth Proportional to 341,585.36, 512,690.55 and 173,221.88

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Solution

The fourth proportional to 341,585.36, 512,690.55 and 173,221.88 is: 259,991.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,585.36 : 512,690.55 = 173,221.88 : x
  2. Step 2: Convert to fraction form
    341,585.36/512,690.55 = 173,221.88/x
  3. Step 3: Cross multiply
    341,585.36x = 512,690.55 × 173,221.88
  4. Step 4: Simplify right side
    341,585.36x = 88,809,220,929.23
  5. Step 5: Solve for x
    x = 88,809,220,929.23/341,585.36
  6. Step 6: Final answer
    x = 259,991.30

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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.